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Few species of reptiles or amphibians are found in Great Britain or Ireland. Only three snakes are native to Great Britain: the adder, the barred grass snake and the smooth snake; none are native to Ireland. In general, Great Britain has slightly more variation and native wildlife, with weasels, polecats, wildcats, most shrews, moles, water voles, roe deer and common toads also being absent from Ireland. This pattern is also true for birds and insects. Notable exceptions include the Kerry slug and certain species of woodlouse native to Ireland but not Great Britain. Domestic animals include the Connemara pony, Shetland pony, English Mastiff, Irish Wolfhound and many varieties of cattle and sheep. Demographics. England has a generally high population density, with almost 80% of the total population of the islands. Elsewhere in Great Britain and Ireland, high density of population is limited to areas around a few large cities. The largest urban area by far is the Greater London Built-up Area with 9 million inhabitants. Other major population centres include the Greater Manchester Built-up Area (2.4 million), West Midlands conurbation (2.4 million) and West Yorkshire Urban Area (1.6 million) in England, Greater Glasgow (1.2 million) in Scotland and Greater Dublin Area (1.9 million) in Ireland.
The population of England rose rapidly during the 19th and 20th centuries, whereas the populations of Scotland and Wales showed little increase during the 20th century; the population of Scotland has remained unchanged since 1951. Ireland for most of its history had much the same population density as Great Britain (about one-third of the total population). However, since the Great Irish Famine, the population of Ireland has fallen to less than one-tenth of the population of the British Isles. The famine caused a century-long population decline, drastically reduced the Irish population and permanently altered the demographic make-up of the British Isles. On a global scale, this disaster led to the creation of an Irish diaspora that numbers fifteen times the current population of the island. The linguistic heritage of the British Isles is rich, with twelve languages from six groups across four branches of the Indo-European family. The Insular Celtic languages of the Goidelic sub-group (Irish, Manx and Scottish Gaelic) and the Brittonic sub-group (Cornish, Welsh and Breton, spoken in north-western France) are the only remaining Celtic languages—the last of their continental relations were extinct before the 7th century. The Norman languages of Guernésiais, Jèrriais and Sercquiais spoken in the Channel Islands are similar to French, a language also spoken there. A cant, called Shelta, is spoken by Irish Travellers, often to conceal meaning from those outside the group. However, English, including Scots, is the dominant language, with few monoglots remaining in the other languages of the region. The Norn language of Orkney and Shetland became extinct around 1880.
History. 2.5 million years ago the British Isles were repeatedly submerged beneath an ice sheet which extended into the middle of the North Sea, with a larger ice sheet that covered a significant proportion of Scandinavia on the opposite side. Around 1.9 million years ago these two ice sheets frequently merged, essentially creating a land bridge between Scandinavia and northern Great Britain. Further south, there was a direct land bridge, now known as Doggerland, which was gradually submerged as sea levels rose. However, the Irish Sea was formed before Doggerland was completely covered in water, with Ireland becoming an island roughly 6,000 years before Great Britain did. The first evidence of human activity on the islands dates from 840,000 or 950,000 years ago, based in flint tools found near Happisburgh on the Norfolk coast of Great Britain. In contrast, the earliest evidence of human activity on the island of Ireland dates from 12,500 years ago. At the time of the Roman Empire, about two thousand years ago, various tribes, which spoke Celtic dialects of the Insular Celtic group, were inhabiting the islands. The Romans expanded their civilisation to control southern Great Britain but were impeded in advancing any further, building Hadrian's Wall to mark the northern frontier of their empire in 122 AD. At that time, Ireland was populated by a people known as Hiberni, the northern third or so of Great Britain by a people known as Picts and the southern two thirds by Britons.
Anglo-Saxons arrived as Roman power waned in the 5th century AD. Initially, their arrival seems to have been at the invitation of the Britons as mercenaries to repulse incursions by the Hiberni and Picts. In time, Anglo-Saxon demands on the British became so great that they came to culturally dominate the bulk of southern Great Britain, though recent genetic evidence suggests Britons still formed the bulk of the population. This dominance created what is now England and left culturally British enclaves only in the north of what is now England, in Cornwall and what is now known as Wales. Ireland had been unaffected by the Romans except, significantly, for being Christianised—traditionally by the Romano-Briton, Saint Patrick. As Europe, including Britain, descended into turmoil following the collapse of Roman civilisation, an era known as the Dark Ages, Ireland entered a golden age and responded with missions (first to Great Britain and then to the continent), the founding of monasteries and universities. These were later joined by Anglo-Saxon missions of a similar nature.
Viking invasions began in the 9th century, followed by more permanent settlements, particularly along the east coast of Ireland, the west coast of modern-day Scotland and the Isle of Man. Though the Vikings were eventually neutralised in Ireland, their influence remained in the cities of Dublin, Cork, Limerick, Waterford and Wexford. England, however, was slowly conquered around the turn of the first millennium AD, and eventually became a feudal possession of Denmark. The relations between the descendants of Vikings in England and counterparts in Normandy, in northern France, lay at the heart of a series of events that led to the Norman conquest of England in 1066. The remnants of the Duchy of Normandy, which conquered England, remain associated to the English Crown as the Channel Islands to this day. A century later, the marriage of the future Henry II of England to Eleanor of Aquitaine created the Angevin Empire, partially under the French Crown. At the invitation of Diarmait Mac Murchada, a provincial king, and under the authority of Pope Adrian IV (the only Englishman to be elected pope), the Angevins invaded Ireland in 1169. Though initially intended to be kept as an independent kingdom, the failure of the Irish High King to ensure the terms of the Treaty of Windsor led Henry II, as King of England, to rule as effective monarch under the title of Lord of Ireland. This title was granted to his younger son, but when Henry's heir unexpectedly died, the title of King of England and Lord of Ireland became entwined in one person.
By the Late Middle Ages, Great Britain was separated into the Kingdoms of England and Scotland. Power in Ireland fluxed between Gaelic kingdoms, Hiberno-Norman lords and the English-dominated Lordship of Ireland. A similar situation existed in the Principality of Wales, which was slowly being annexed into the Kingdom of England by a series of laws. During the course of the 15th century, the Crown of England would assert a claim to the Crown of France, thereby also releasing the King of England from being vassal of the King of France. In 1534, King Henry VIII, at first having been a strong defender of Roman Catholicism in the face of the Reformation, separated from the Roman Church after failing to secure a divorce from the Pope. His response was to place the King of England as "the only Supreme Head in Earth of the Church of England", thereby removing the authority of the Pope from the affairs of the English Church. Ireland, which had been held by the King of England as Lord of Ireland, but which strictly speaking had been a feudal possession of the Pope since the Norman invasion was declared a separate kingdom in personal union with England.
Scotland meanwhile had remained an independent Kingdom. In 1603, that changed when the King of Scotland inherited the Crown of England, and consequently the Crown of Ireland also. The subsequent 17th century was one of political upheaval, religious division and war. English colonialism in Ireland of the 16th century was extended by large-scale Scottish and English colonies in Ulster. Religious division heightened, and the king of England came into conflict with parliament over his tolerance towards Catholicism. The resulting English Civil War or War of the Three Kingdoms led to a revolutionary republic in England. Ireland, largely Catholic, was mainly loyal to the king, but by military conquest was subsumed into the new republic. Following defeat to the parliament's army, large scale land distributions from loyalist Irish nobility to English commoners in the service of the parliamentary army created a new Ascendancy class which obliterated the remnants of Old English (Hiberno-Norman) and Gaelic Irish nobility in Ireland. The new ruling class was Protestant and English, whilst the populace was largely Catholic and Irish. This theme would influence Irish politics for centuries to come. When the monarchy was restored in England, the king found it politically impossible to restore the lands of former landowners in Ireland. The "Glorious Revolution" of 1688 repeated similar themes: a Catholic king pushing for religious tolerance in opposition to a Protestant parliament in England. The king's army was defeated at the Battle of the Boyne and at the militarily crucial Battle of Aughrim in Ireland. Resistance held out, eventually forcing the guarantee of religious tolerance in the Treaty of Limerick. However, the terms were never honoured and a new monarchy was installed.
The Kingdoms of England and Scotland were unified in 1707 creating the Kingdom of Great Britain. Following an attempted republican revolution in Ireland in 1798, the Kingdoms of Ireland and Great Britain were unified in 1801, creating the United Kingdom. The Isle of Man and the Channel Islands remaining outside of the United Kingdom, but with their ultimate good governance being the responsibility of the British Crown (effectively the British government). Although the colonies of North America that would become the United States of America were lost by the start of the 19th century, the British Empire expanded rapidly elsewhere. A century later, it would cover one-third of the globe. Poverty in the United Kingdom remained desperate, however, and industrialisation in England led to terrible conditions for the working classes. Mass migrations following the Irish Famine and Highland Clearances resulted in the distribution of the islands' population and culture throughout the world and a rapid de-population of Ireland in the second half of the 19th century. Most of Ireland seceded from the United Kingdom after the Irish War of Independence and the subsequent Anglo-Irish Treaty (1919–1922), with the six counties that formed Northern Ireland remaining as an autonomous region of the UK.
Politics. There are two sovereign states in the British Isles: Ireland and the United Kingdom of Great Britain and Northern Ireland. Ireland, sometimes called the Republic of Ireland, governs five-sixths of the island of Ireland, with the remainder of the island forming Northern Ireland. Northern Ireland is a part of the United Kingdom of Great Britain and Northern Ireland, usually shortened to simply "the United Kingdom", which governs the remainder of the archipelago with the exception of the Isle of Man and the Channel Islands. The Isle of Man and the two Bailiwicks of the Channel Islands, Jersey and Guernsey, are known as the Crown Dependencies. They exercise constitutional rights of self-government and judicial independence; responsibility for international representation rests largely with the UK (in consultation with the respective governments); and responsibility for defence is reserved by the UK. The United Kingdom is made up of four constituent parts: England, Scotland and Wales, forming Great Britain, and Northern Ireland in the northeast of the island of Ireland. Of these, Scotland, Wales and Northern Ireland have devolved governments, meaning that each has its own parliament or assembly and is self-governing with respect to certain matters set down by law. For judicial purposes, Scotland, Northern Ireland and England and Wales (the latter being one entity) form separate legal jurisdictions, with there being no single law for the UK as a whole.
Ireland, the United Kingdom and the three Crown dependencies are all parliamentary democracies, with their own separate parliaments. All parts of the United Kingdom return Members of Parliament (MPs) to parliament in London. In addition to this, voters in Scotland, Wales and Northern Ireland return members to a devolved parliament in Edinburgh and in Cardiff and an assembly in Belfast. Governance in the norm is by majority rule; however, Northern Ireland uses a system of power sharing whereby unionists and nationalists share executive posts proportionately and where the assent of both groups is required for the Northern Ireland Assembly to make certain decisions. (In the context of Northern Ireland, unionists are those who want Northern Ireland to remain a part of the United Kingdom and nationalists are those who want Northern Ireland to join with the rest of Ireland.) The British monarch is the head of state of the United Kingdom, while in the Republic of Ireland the head of state is the President of Ireland.
Ireland is the only part of the isles that is a member state of the European Union (EU). The UK was a member between 1 January 1973 and 31 January 2020, but the Isle of Man and the Channel Islands were not. Since the partition of Ireland, an informal free-travel area has existed across the island of Ireland. This area required formal recognition in 1997 during the course of negotiations for the Amsterdam Treaty of the European Union, and (together with the Crown dependencies) is now known as the Common Travel Area. As such, Ireland is not part of the Schengen Area, which allows passport-free travel between most EU member states, and is the only member state with an opt-out from the obligation to join the Schengen Zone. Reciprocal arrangements allow British and Irish citizens specific voting rights in the two states. In Ireland, British citizens can vote in General and local elections, but not in European Parliament elections, constitutional referendums or presidential elections (for which there is no comparable franchise in the United Kingdom). In the United Kingdom, Irish and Commonwealth citizens can vote in every election for which British citizens are eligible. In the Crown dependencies, any resident can vote in general elections, but in Jersey and the Isle of Man only British citizens can run for office. These pre-date European Union law, and in both jurisdictions go further than what was required by European Union law (EU citizens may only vote in local elections in both states and European elections in Ireland). In 2008, a UK Ministry of Justice report investigating how to strengthen the British sense of citizenship proposed to end this arrangement, arguing that "the right to vote is one of the hallmarks of the political status of citizens; it is not a means of expressing closeness between countries".
In addition, some civil bodies are organised throughout the islands as a whole—for example, the Samaritans, which is deliberately organised without regard to national boundaries on the basis that a service which is not political or religious should not recognise sectarian or political divisions. The Royal National Lifeboat Institution (RNLI), a charity that operates a lifeboat service, is also organised throughout the islands as a whole, covering the waters of the United Kingdom, Ireland, the Isle of Man, and the Channel Islands. The Northern Ireland peace process has led to a number of unusual arrangements between the Republic of Ireland, Northern Ireland and the United Kingdom. For example, citizens of Northern Ireland are entitled to the choice of Irish or British citizenship or both, and the Governments of Ireland and the United Kingdom consult on matters not devolved to the Northern Ireland Executive. The Northern Ireland Executive and the Government of Ireland also meet as the North/South Ministerial Council to develop policies common across the island of Ireland. These arrangements were made following the 1998 Good Friday Agreement.
British–Irish Council. Another body established under the Good Friday Agreement, the British–Irish Council, is made up of all of the states and territories of the British Isles. The British–Irish Parliamentary Assembly () predates the British–Irish Council and was established in 1990. Originally it comprised 25 members of the Oireachtas, the Irish parliament, and 25 members of the parliament of the United Kingdom, with the purpose of building mutual understanding between members of both legislatures. Since then the role and scope of the body has been expanded to include representatives from the Scottish Parliament, the Senedd (Welsh Parliament), the Northern Ireland Assembly, the States of Jersey, the States of Guernsey and the High Court of Tynwald (Isle of Man). The Council does not have executive powers but meets biannually to discuss issues of mutual importance. Similarly, the Parliamentary Assembly has no legislative powers but investigates and collects witness evidence from the public on matters of mutual concern to its members. Reports on its findings are presented to the Governments of Ireland and the United Kingdom. During the February 2008 meeting of the British–Irish Council, it was agreed to set up a standing secretariat that would serve as a permanent 'civil service' for the Council. Leading on from developments in the British–Irish Council, the chair of the British–Irish Inter-Parliamentary Assembly, Niall Blaney, has suggested that the body should shadow the British–Irish Council's work.
Culture. The United Kingdom and Ireland have separate media, although British television, newspapers and magazines are widely available in Ireland, giving people in Ireland a high level of familiarity with the culture of the United Kingdom. Irish newspapers are also available in the UK, and Irish state and private television are widely available in Northern Ireland. Certain reality TV shows have embraced the whole of the islands, for example "The X Factor", seasons 3, 4 and 7 of which featured auditions in Dublin and were open to Irish voters, whilst the show previously known as "Britain's Next Top Model" became "Britain and Ireland's Next Top Model" in 2011. A few cultural events are organised for the island group as a whole. For example, the Costa Book Awards are awarded to authors resident in the UK or Ireland. The Mercury Music Prize is handed out every year to the best album from a British or Irish musician or group.
The Ryder Cup in golf was originally played between a United States team and a team representing Great Britain and Ireland. From 1979 onwards, this was expanded to include the whole of Europe. Transport. London Heathrow Airport is Europe's busiest airport in terms of passenger traffic, and the Dublin-London route is the busiest air route in Europe collectively, the busiest route out of Heathrow, and among the top-20 busiest international air routes in the world. The English Channel and the southern North Sea are the busiest seaways in the world. The Channel Tunnel, opened in 1994, links Great Britain to France and is the second-longest rail tunnel in the world. The idea of building a tunnel under the Irish Sea has been raised since 1895, when it was first investigated. Several potential Irish Sea tunnel projects have been proposed, most recently the Tusker Tunnel between the ports of Rosslare and Fishguard proposed by The Institute of Engineers of Ireland in 2004. A rail tunnel was proposed in 1997 on a different route, between Dublin and Holyhead, by British engineering firm Symonds. Either tunnel, at , would be by far the longest in the world, and would cost an estimated £15 billion (€20 billion). A proposal in 2007, estimated the cost of building a bridge from County Antrim in Northern Ireland to Galloway in Scotland at £3.5bn (€5bn).
Basque language Basque ( ; ) is a language spoken by Basques and other residents of the Basque Country, a region that straddles the westernmost Pyrenees in adjacent parts of northern Spain and southwestern France. Basque is classified as a language isolate (unrelated to any other known languages) and the only language isolate in Europe. The Basques are indigenous to and primarily inhabit the Basque Country. The Basque language is spoken by 806,000 Basques in all territories. Of these, 93.7% (756,000) are in the Spanish area of the Basque Country and the remaining 6.3% (50,000) are in the French portion. Native speakers live in a contiguous area that includes parts of four Spanish provinces and the three "ancient provinces" in France. Gipuzkoa, most of Biscay, a few municipalities on the northern border of Álava and the northern area of Navarre formed the core of the remaining Basque-speaking area before measures were introduced in the 1980s to strengthen Basque fluency. By contrast, most of Álava, the westernmost part of Biscay, and central and southern Navarre are predominantly populated by native speakers of Spanish, either because Basque was replaced by either Navarro-Aragonese or Spanish over the centuries (as in most of Álava and central Navarre), or because it may never have been spoken there (as in parts of Enkarterri and south-eastern Navarre).
In Francoist Spain, Basque language use was discouraged by the government's repressive policies. In the Basque Country, "Francoist repression was not only political, but also linguistic and cultural." Franco's regime suppressed Basque from official discourse, education, and publishing, making it illegal to register newborn babies under Basque names, and even requiring tombstone engravings in Basque to be removed. In some provinces the public use of Basque was suppressed, with people fined for speaking it. Public use of Basque was frowned upon by supporters of the regime, often regarded as a sign of anti-Francoism or separatism. Overall, in the 1960s and later, the trend reversed and education and publishing in Basque began to flourish. As a part of this process, a standardised form of the Basque language, called Euskara Batua, was developed by the Euskaltzaindia in the late 1960s. Besides its standardised version, the five historic Basque dialects are Biscayan, Gipuzkoan, and Upper Navarrese in Spain and Navarrese–Lapurdian and Souletin in France. They take their names from the historic Basque provinces, but the dialect boundaries are not congruent with province boundaries. Euskara Batua was created so that the Basque language could be used—and easily understood by all Basque speakers—in formal situations (education, mass media, literature), and this is its main use today. In both Spain and France, the use of Basque for education varies from region to region and from school to school.
Basque is the only surviving Paleo-European language in Europe. The current mainstream scientific view on the origin of the Basques and of their language is that early forms of Basque developed before the arrival of Indo-European languages in the area, i.e. before the arrival of Celtic and Romance languages in particular, as the latter today geographically surround the Basque-speaking region. Typologically, with its agglutinative morphology and ergative–absolutive alignment, Basque grammar remains markedly different from that of Standard Average European languages. Nevertheless, Basque has borrowed up to 40 percent of its vocabulary from Romance languages, and the Latin script is used for the Basque alphabet. Names of the language. In Basque, the name of the language is officially (alongside various dialect forms). In French, the language is normally called , though has become common in recent times. Spanish has a greater variety of names for the language. Today, it is most commonly referred to as , , or . Both terms, and , are inherited from the Latin ethnonym , which in turn goes back to the Greek term (), an ethnonym used by Strabo in his (23 CE, Book III).
The Spanish term , derived from Latin , has acquired negative connotations over the centuries and is not well-liked amongst Basque speakers generally. Its use is documented at least as far back as the 14th century when a law passed in Huesca in 1349 stated that —essentially penalising the use of Arabic, Hebrew, or Basque in marketplaces with a fine of 30 sols (the equivalent of 30 sheep). History and classification. Although the Basque language is geographically surrounded by Romance languages, it is a language isolate that is unrelated to them or to any other living language. Most scholars believe Basque to be the last remaining descendant of one of the pre-Indo-European languages of prehistoric Europe. Consequently, it may be impossible to reconstruct the prehistory of the Basque language by the traditional comparative method except by applying it to differences between Basque dialects. Little is known of its origins, but it is likely that an early form of the Basque language was present in and around the area of modern Basque Country before the arrival of the Indo-European languages in western Europe during the 3rd millennium BC.
Authors such as Miguel de Unamuno and Louis Lucien Bonaparte have noted that the words for "knife" (), "axe" (), and "hoe" () appear to derive from the word for "stone" (), and have therefore concluded that the language dates to prehistoric Europe when those tools were made of stone. Others find this theory unlikely. Latin inscriptions in preserve a number of words with cognates in the reconstructed proto-Basque language, for instance, the personal names and ( and mean 'young girl' and 'man', respectively in modern Basque). This language is generally referred to as Aquitanian and is assumed to have been spoken in the area before the Roman Republic's conquests in the western Pyrenees. Some authors even argue for late Basquisation, that the language moved westward during Late Antiquity after the fall of the Western Roman Empire into the northern part of Hispania into what is now the Basque Country. Roman neglect of this area allowed Aquitanian to survive while the Iberian and Tartessian languages became extinct. Through the long contact with Romance languages, Basque adopted a sizeable number of Romance words. Initially the source was Latin, later Gascon (a branch of Occitan) in the north-east, Navarro-Aragonese in the south-east and Spanish in the south-west.
Since 1968, Basque has been immersed in a revitalisation process, facing formidable obstacles. However, significant progress has been made in numerous areas. Six main factors have been identified to explain its relative success: While those six factors influenced the revitalisation process, the extensive development and use of language technologies is also considered a significant additional factor. Hypotheses concerning Basque's connections to other languages. Many linguists have tried to link Basque with other languages, but no hypothesis has gained mainstream acceptance. Apart from pseudoscientific comparisons, the appearance of long-range linguistics gave rise to several attempts to connect Basque with geographically very distant language families such as Georgian. Historical work on Basque is challenging since written material and documentation has only been available for some few hundred years. Almost all hypotheses concerning the origin of Basque are controversial, and the suggested evidence is not generally accepted by mainstream linguists. Some of these hypothetical connections are:
Geographic distribution. The region where Basque is spoken has become smaller over centuries, especially at the northern, southern, and eastern borders. Nothing is known about the limits of this region in ancient times, but on the basis of toponyms and epigraphs, it seems that in the beginning of the Common Era it stretched to the river Garonne in the north (including the south-western part of present-day France); at least to the Val d'Aran in the east (now a Gascon-speaking part of Catalonia), including lands on both sides of the Pyrenees; the southern and western boundaries are not clear at all. The Reconquista temporarily counteracted this contracting tendency when the Christian lords called on northern Iberian peoples — Basques, Asturians, and "Franks" — to colonise the new conquests. The Basque language became the main everyday language, while other languages like Spanish, Gascon, French, or Latin were preferred for the administration and high education. By the 16th century, the Basque-speaking area was reduced basically to the present-day seven provinces of the Basque Country, excluding the southern part of Navarre, the south-western part of Álava, and the western part of Biscay, and including some parts of Béarn.
In 1807, Basque was still spoken in the northern half of Álava—including its capital city Vitoria-Gasteiz—and a vast area in central Navarre, but in these two provinces, Basque experienced a rapid decline that pushed its border northwards. In the French Basque Country, Basque was still spoken in all the territory except in Bayonne and some villages around, and including some bordering towns in Béarn. In the 20th century, however, the rise of Basque nationalism spurred increased interest in the language as a sign of ethnic identity, and with the establishment of autonomous governments in the Southern Basque Country, it has recently made a modest comeback. In the Spanish part, Basque-language schools for children and Basque-teaching centres for adults have brought the language to areas such as western Enkarterri and the Ribera del Ebro in southern Navarre, where it is not known to ever have been widely spoken; and in the French Basque Country, these schools and centres have almost stopped the decline of the language.
Official status. Historically, Latin or Romance languages have been the official languages in this region. However, Basque was explicitly recognised in some areas. For instance, the "fuero" or charter of the Basque-colonised Ojacastro (now in La Rioja) allowed the inhabitants to use Basque in legal processes in the 13th and 14th centuries. Basque was allowed in telegraph messages in Spain thanks to the royal decree of 1904. The Spanish Constitution of 1978 states in Article 3 that the Spanish language is the official language of the nation, but allows autonomous communities to provide a co-official language status for the other languages of Spain. Consequently, the Statute of Autonomy of the Basque Autonomous Community establishes Basque as the co-official language of the autonomous community. The Statute of Navarre establishes Spanish as the official language of Navarre, but grants co-official status to the Basque language in the Basque-speaking areas of northern Navarre. Basque has no official status in the French Basque Country and French citizens are barred from officially using Basque in a French court of law. However, the use of Basque by Spanish nationals in French courts is permitted (with translation), as Basque is officially recognised on the other side of the border.
The positions of the various existing governments differ with regard to the promotion of Basque in areas where Basque is commonly spoken. The language has official status in those territories that are within the Basque Autonomous Community, where it is spoken and promoted heavily, but only partially in Navarre. The (), seen as contentious by many Basques, but considered fitting Navarra's linguistic and cultural diversity by some of the main political parties of Navarre, divides Navarre into three language areas: Basque-speaking, non-Basque-speaking, and mixed. Support for the language and the linguistic rights of citizens vary, depending on the area. Others consider it unfair, since the rights of Basque speakers differ greatly depending on the place they live. Demographics. The 2021 sociolinguistic survey of all Basque-speaking territories showed that, of all people aged 16 and above: In 2021, out of a population of 2,634,800 over 16 years of age (1,838,800 in the Autonomous community, 546,000 in Navarre and 250,000 in the Northern Basque Country), 806,000 spoke Basque, which amounted to 30.6% of the population. Compared to the 1991 figures, this represents an overall increase of 266,000, from 539,110 speakers 30 years previously (430,000 in the BAC, 40,110 in FCN, and 69,000 in the Northern provinces). This number has tended to increase, as in all regions the age group most likely to speak Basque was those between 16 and 24 years old. In the BAC, the proportion in this age group who spoke the language (74.5%) was nearly triple the comparable figure from 1991, when barely a quarter of the population spoke Basque.
While there is a general increase in the number of Basque speakers during this period, this is mainly because of bilingualism. Basque transmission as a sole mother tongue has decreased from 19% in 1991 to 15.1% in 2016, while Basque and another language being used as mother language increased from 3% to 5.4% in the same time period. General public attitude towards efforts to promote the Basque language have also been more positive, with the share of people against these efforts falling from 20.9% in 1991 to 16% in 2016. In 2021, the study found that in the BAC, when both parents were Basque speakers, 98% of children were only communicated to in Basque, while 2% were communicated to in both Basque and Spanish. When only one parent was a Basque speaker and their first language was Basque, 84% used Basque and Spanish and 16% only Spanish. In Navarre, the family language of 94.3% of the youngest respondents with both Basque parents was Basque. In the Northern Basque Country, however, when both parents were Basque-speaking, just two-thirds transmitted only Basque to their offspring, and as age decreased, the transmission rate also decreased.
Basque is used as a language of commerce both in the Basque Country and in locations around the world where Basques immigrated throughout history. Dialects. The modern Basque dialects show a high degree of dialectal divergence, sometimes making cross-dialect communication difficult. This is especially true in the case of Biscayan and Souletin, which are regarded as the most divergent Basque dialects. Modern Basque dialectology distinguishes five dialects: These dialects are divided in 11 subdialects, and 24 minor varieties among them. According to Koldo Zuazo, the Biscayan dialect or "Western" is the most widespread dialect, with around 300,000 speakers out of a total of around 660,000 speakers. This dialect is divided in two minor subdialects: the Western Biscayan and Eastern Biscayan, plus transitional dialects. Influence on other languages. Although the influence of the neighbouring Romance languages on the Basque language (especially the lexicon, but also to some degree Basque phonology and grammar) has been much more extensive, it is usually assumed that there has been some feedback from Basque into these languages as well. In particular Gascon and Aragonese, and to a lesser degree Spanish are thought to have received this influence in the past. In the case of Aragonese and Gascon, this would have been through substrate interference following language shift from Aquitanian or Basque to a Romance language, affecting all levels of the language, including place names around the Pyrenees.
Although a number of words of alleged Basque origin in the Spanish language are circulated (e.g. 'anchovies', 'dashing, gallant, spirited', 'puppy', etc.), most of these have more easily explicable Romance etymologies or not particularly convincing derivations from Basque. Ignoring cultural terms, there is one strong loanword candidate, , long considered the source of the Pyrenean and Iberian Romance words for "left (side)" (, , ). The lack of initial in Gascon could arguably be due to a Basque influence but this issue is under-researched. The other most commonly claimed substrate influences: The first two features are common, widespread developments in many Romance (and non-Romance) languages. The change of to occurred historically only in a limited area (Gascony and Old Castile) that corresponds almost exactly to areas where heavy Basque bilingualism is assumed, and as a result has been widely postulated (and equally strongly disputed). Substrate theories are often difficult to prove (especially in the case of phonetically plausible changes like to ). As a result, although many arguments have been made on both sides, the debate largely comes down to the a priori tendency on the part of particular linguists to accept or reject substrate arguments.
Examples of arguments against the substrate theory, and possible responses: Beyond these arguments, a number of nomadic groups of Castile are also said to use or have used Basque words in their jargon, such as the gacería in Segovia, the mingaña, the Galician fala dos arxinas and the Asturian Xíriga. Part of the Romani community in the Basque Country speaks Erromintxela, which is a rare mixed language, with a Kalderash Romani vocabulary and Basque grammar. Basque pidgins. A number of Basque-based or Basque-influenced pidgins have existed. In the 16th century, Basque sailors used a Basque–Icelandic pidgin in their contacts with Iceland. The Algonquian–Basque pidgin arose from contact between Basque whalers and the Algonquian peoples in the Gulf of Saint Lawrence and Strait of Belle Isle. Phonology. Vowels. The Basque language features five vowels: , , , and (the same that are found in Spanish, Asturian and Aragonese). In the Zuberoan dialect, extra phonemes are featured: There is no distinctive vowel length in Basque, although vowels can be lengthened for emphasis. The mid vowels and are raised before nasal consonants.
Basque has an a-Elision Rule, according to which the vowel is elided before any following vowel. This does not prevent the existence of diphthongs with present. There are six diphthongs in Basque, all falling and with or as the second element. Consonants. In syllable-final position, all plosives are devoiced and are spelled accordingly in Standard Basque. When between vowels, and often when after or , the voiced plosives , , and , are pronounced as the corresponding fricatives , , and . Basque has a distinction between laminal and apical articulation for the alveolar fricatives and affricates. With the laminal alveolar fricative , the friction occurs across the blade of the tongue, the tongue tip pointing toward the lower teeth. This is the usual in most European languages. It is written with an orthographic . By contrast, the voiceless apicoalveolar fricative is written ; the tip of the tongue points toward the upper teeth and friction occurs at the tip (apex). For example, (singular, respectful) is distinguished from . The affricate counterparts are written and . So, is distinguished from ; is distinguished from .
In the westernmost parts of the Basque country, only the apical and the alveolar affricate are used. Basque also features postalveolar sibilants (, written , and , written ). The letter has a variety of realisations according to the regional dialect: , as pronounced from west to east in south Bizkaia and coastal Lapurdi, central Bizkaia, east Bizkaia and Gipuzkoa, south Navarre, inland Lapurdi and Low Navarre, and Zuberoa, respectively. The letter is pronounced in the northern dialects, but not pronounced in the southern ones. Unified Basque spells it except when it is predictable, in a position following a consonant. Unless they are recent loanwords (e.g. , , ... ), words may not have initial . In older loans, initial "r-" took a prosthetic vowel, resulting in "err-" ( , ), more rarely "irr-" (for example , ) and "arr-" (for example ). Basque does not have in syllable final position, and syllable-final assimilates to the place of articulation of following plosives. As a result, is pronounced like , and is realized as .
Palatalization. Basque has two types of palatalization, automatic palatalization and expressive palatalization. Automatic palatalization occurs in western Labourd, much of Navarre, all of Gipuzkoa, and nearly all of Biscay. As a result of automatic palatalization, and become the palatal nasal and the palatal lateral respectively after the vowel and before another vowel. An exception is the loanword 'lily'. The same palatalization occurs after the semivowel of the diphthongs "ai, ei, oi, ui". This palatalization occurs in a wider area, including Soule, all of Gipuzkoa and Biscay, and almost all of Navarre. In a few regions, and can be palatalized even in the absence of a following vowel. After palatalization, the semivowel is usually absorbed by the palatal consonant. This can be seen in older spellings, such as instead of modern 'degree'. That said, the modern orthography for Standard Basque ignores automatic palatalization. In certain regions of Gipuzkoa and Biscay, intervocalic is often palatalized after and especially . It may become indistinguishable from the affricate , spelled , so 'father' may sound like it were spelled or . This type of palatalization is far from general, and is often viewed as substandard.
In Goizueta Basque, there are a few examples of being palatalized after , and optional palatalization of . For example, 'seedbed' becomes , and 'lamb' can be . Basque nouns, adjectives, and adverbs can be expressively palatalized. These express 'smallness', rarely literal and often showing affection, in nouns, and mitigation in adjectives and adverbs. This is often used in the formation of pet names and nicknames. In words containing one or more sibilant, these sibilants are palatalized in order to form the palatalized form. That is, "s" and "z" become "x", and "ts" and "tz" become "tx". As a result, 'man' becomes 'little fellow', 'crazy, insane' becomes 'silly, foolish', and 'lamb' becomes 'lambkin, young lamb'. In words without sibilants, , , , and can become palatalized. This palatalization is indicated in writing with a double consonant, except in the case of palatalized which is written . Thus, 'drop' becomes 'droplet', and 'grey' becomes 'grey and pretty, greyish'. The pronunciation of "tt" and "dd", and the existence of "dd", differ by dialect. In the Gipuzkoan and Biscayan dialects "tt" is often pronounced the same as "tx", that is, as , and "dd" does not exist. Likewise, in Goizueta Basque, "tt" is a voiceless palatal stop and the corresponding voiced palatal stop, , is absent except as an allophone of . In Goizueta Basque, is sometimes the result of an affectionate palatalization of .
Palatalization of the rhotics is rare and only occurs in the eastern dialects. When palatalized, the rhotics become the palatal lateral . Likewise, palatalization of velars, resulting in "tt" or "tx", is quite rare. A few common words, such as 'dog', pronounced , use palatal sounds even though in current usage they have lost the diminutive sense, the corresponding non-palatal forms now acquiring an augmentative or pejorative sense: 'big dog'. Sandhi. There are some rules which govern the behavior of consonants in contact with each other. These apply both within and between words. When two plosives meet, the first one is dropped, and the second must become voiceless. If a sibilant follows a plosive, the plosive is dropped, and the sibilant becomes the corresponding affricate. When a plosive follows an affricate, the affricate becomes a sibilant, and a voiced plosive is devoiced. When a voiced plosive follows a sibilant, it is devoiced except in very slow and careful speech. In the central dialects of Basque, a sibilant turns into an affricate when it follows a liquid or a nasal. When a plosive follows a nasal, there is a strong tendency for it to become voiced.
Stress and pitch. Basque features great dialectal variation in accentuation, from a weak pitch accent in the western dialects to a marked stress in central and eastern dialects, with varying patterns of stress placement. Stress is in general not distinctive (and for historical comparisons not very useful); there are, however, a few instances where stress is phonemic, serving to distinguish between a few pairs of stress-marked words and between some grammatical forms (mainly plurals from other forms), e.g. (, absolutive case) vs. (, absolutive case; an adoption from Spanish ); (, ergative case) vs. (, ergative case) vs. ( or , absolutive case). Given its great deal of variation among dialects, stress is not marked in the standard orthography and Euskaltzaindia (the Academy of the Basque Language) provides only general recommendations for a standard placement of stress, basically to place a high-pitched weak stress (weaker than that of Spanish, let alone that of English) on the second syllable of a syntagma, and a low-pitched even-weaker stress on its last syllable, except in plural forms where stress is moved to the first syllable.
This scheme provides Basque with a distinct musicality that differentiates its sound from the prosodical patterns of Spanish (which tends to stress the second-to-last syllable). Some (, i.e. second-language Basque-speakers) with Spanish as their first language tend to carry the prosodical patterns of Spanish into their pronunciation of Basque, e.g. pronouncing () as (– – ´ –), instead of as (– ´ – `). Morphophonology. The combining forms of nominals in final vary across the regions of the Basque Country. The can stay unchanged, be lowered to an , or it can be lost. Loss is most common in the east, while lowering is most common in the west. For instance, , , has the combining forms and , as in , , and , , whereas , , has the combining form , as in , . Michelena suggests that the lowering to is generalised from cases of Romance borrowings in Basque that retained Romance stem alternations, such as , with combining form , borrowed from Romance "canto", "canta-". Grammar. Basque is an ergative–absolutive language. The subject of an intransitive verb is in the absolutive case (which is unmarked), and the same case is used for the direct object of a transitive verb. The subject of the transitive verb is marked differently, with the ergative case (shown by the suffix "-k"). This also triggers main and auxiliary verbal agreement.
The auxiliary verb, which accompanies most main verbs, agrees not only with the subject, but with any direct object and the indirect object present. Among European languages, this polypersonal agreement is found only in Basque, some languages of the Caucasus (especially the Kartvelian languages), Mordvinic languages, Hungarian, and Maltese (all non-Indo-European). The ergative–absolutive alignment is also rare among European languages—occurring only in some languages of the Caucasus—but not infrequent worldwide. Consider the phrase: is the agent (transitive subject), so it is marked with the ergative case ending "-k" (with an epenthetic "-e-"). has an "-ak" ending, which marks plural object (plural absolutive, direct object case). The verb is , in which is a kind of gerund ("buying") and the auxiliary means "he/she (does) them for me". This can be split like this: The auxiliary verb is composed as di-zki-da-zue and means 'you pl. (do) them for me' The pronoun 'you (plural)' has the same form both in the nominative or absolutive case (the subject of an intransitive sentence or direct object of a transitive sentence) and in the ergative case (the subject of a transitive sentence). In spoken Basque, the auxiliary verb is never dropped even if it is redundant, e.g. in 'you (pl.) are buying the newspapers for me'. However, the pronouns are almost always dropped, e.g. in 'you (pl.) are buying the newspapers for me'. The pronouns are used only to show emphasis: 'it is you (pl.) who buys the newspapers for me', or 'it is me for whom you buy the newspapers'.
Modern Basque dialects allow for the conjugation of about fifteen verbs, called synthetic verbs, some only in literary contexts. These can be put in the present and past tenses in the indicative and subjunctive moods, in three tenses in the conditional and potential moods, and in one tense in the imperative. Each verb that can be taken intransitively has a (absolutive) paradigm and possibly a (absolutive–dative) paradigm, as in the sentence (). Each verb that can be taken transitively uses those two paradigms for antipassive-voice contexts in which no agent is mentioned (Basque lacks a passive voice, and displays instead an antipassive voice paradigm), and also has a (absolutive–ergative) paradigm and possibly a (absolutive–dative–ergative) paradigm. This last is exemplified by above. In each paradigm, each constituent noun can take on any of eight persons, five singular and three plural, with the exception of in which the absolutive can only be third person singular or plural. The most ubiquitous auxiliary, , can be used in any of these paradigms, depending on the nature of the main verb.
There are more persons in the singular (5) than in the plural (3) for synthetic (or filamentous) verbs because of the two familiar persons—informal masculine and feminine second person singular. The pronoun "hi" is used for both of them, but where the masculine form of the verb uses a "-k", the feminine uses an "-n." This is a property rarely found in Indo-European languages. The entire paradigm of the verb is further augmented by inflecting for "listener" (the allocutive) even if the verb contains no second person constituent. If the situation calls for the familiar masculine, the form is augmented and modified accordingly. Likewise for the familiar feminine. (, ; , , , , , ) This multiplies the number of possible forms by nearly three. Still, the restriction on contexts in which these forms may be used is strong, since all participants in the conversation must be friends of the same sex, and not too far apart in age. Some dialects dispense with the familiar forms entirely. Note, however, that the formal second person singular conjugates in parallel to the other plural forms, perhaps indicating that it was originally the second person plural, later came to be used as a formal singular, and then later still the modern second person plural was formulated as an innovation.
All the other verbs in Basque are called periphrastic, behaving much like a participle would in English. These have only three forms in total, called aspects: perfect (various suffixes), habitual (suffix "-t[z]en"), and future/potential (suffix. "-ko/-go"). Verbs of Latinate origin in Basque, as well as many other verbs, have a suffix "-tu" in the perfect, adapted from the Latin perfect passive "-tus" suffix. The synthetic verbs also have periphrastic forms, for use in perfects and in simple tenses in which they are deponent. Within a verb phrase, the periphrastic verb comes first, followed by the auxiliary. A Basque noun phrase is inflected in 17 different ways for case, multiplied by four ways for its definiteness and number (indefinite, definite singular, definite plural, and definite close plural: [Basque speaker], [the Basque speaker, a Basque speaker], [Basque speakers, the Basque speakers], and [we Basque speakers, those Basque speakers]). These first 68 forms are further modified based on other parts of the sentence, which in turn are inflected for the noun again. It has been estimated that, with two levels of recursion, a Basque noun may have 458,683 inflected forms.
The common noun is declined as follows: The proper name (Michael) is declined as follows: Within a noun phrase, modifying adjectives follow the noun. As an example of a Basque noun phrase, is morphologically analysed as follows by Agirre et al. Basic word order in syntactic construction is subject–object–verb (unlike Spanish, French or English where a subject–verb–object construction is more common). The order of the phrases within a sentence can be changed for thematic purposes, whereas the order of the words within a phrase is usually rigid. As a matter of fact, Basque phrase order is topic–focus, meaning that in neutral sentences (such as sentences to inform someone of a fact or event) the topic is stated first, then the focus. In such sentences, the verb phrase comes at the end. In brief, the focus directly precedes the verb phrase. This rule is also applied in questions, for instance, "What is this?" can be translated as or , but in both cases the question tag immediately precedes the verb . This rule is so important in Basque that, even in grammatical descriptions of Basque in other languages, the Basque word is used.
In negative sentences, the order changes. Since the negative particle must always directly precede the auxiliary, the topic most often comes beforehand, and the rest of the sentence follows. This includes the periphrastic, if there is one: , , in the negative becomes , in which () is separated from its auxiliary and placed at the end. Vocabulary. Through contact with neighbouring peoples, Basque has adopted many words from Latin, Spanish, French and Gascon, among other languages. There are a considerable number of Latin loans (sometimes obscured by being subject to Basque phonology and grammar for centuries), for example: (, from ), (, from , ), (, from ), (, from ). Writing system. Basque is written using the Latin script including and sometimes and . Basque does not use for native words, but the Basque alphabet (established by Euskaltzaindia) does include them for loanwords: The phonetically meaningful digraphs are treated as pairs of letters. All letters and digraphs represent unique phonemes. The main exception is when precedes and , which in most dialects palatalises their sounds into and , even if these are not written. Hence, can also be written without changing the sound, whereas the proper name requires the mute to break the palatalisation of the .
is mute in most regions, but it is pronounced in many places in the north-east, the main reason for its existence in the Basque alphabet. Its acceptance was a matter of contention during the standardisation process because the speakers of the most extended dialects had to learn where to place , silent for them. In Sabino Arana's (1865–1903) alphabet, digraphs and were replaced with and , respectively. A typically Basque style of lettering is sometimes used for inscriptions. It derives from the work of stone and wood carvers and is characterised by thick serifs. Number system used by millers. Basque millers traditionally employed a separate number system of unknown origin. In this system the symbols are arranged either along a vertical line or horizontally. On the vertical line the single digits and fractions are usually off to one side, usually at the top. When used horizontally, the smallest units are usually on the right and the largest on the left. As with the Basque system of counting in general, it is vigesimal (base 20). Although it is in theory capable of indicating numbers above 100, most recorded examples do not go above 100. Fractions are relatively common, especially .
The exact systems used vary from area to area but generally follow the same principle with 5 usually being a diagonal line or a curve off the vertical line (a V shape is used when writing a 5 horizontally). Units of ten are usually a horizontal line through the vertical. The twenties are based on a circle with intersecting lines. This system is no longer in general use but is occasionally employed for decorative purposes.
Björn Ulvaeus Björn Kristian Ulvaeus (; born 25 April 1945) is a Swedish musician, singer, songwriter, and producer best known as a member of the musical group ABBA. He is also the co-composer of the musicals "Chess", "Kristina från Duvemåla", and "Mamma Mia!" He co-produced the films "Mamma Mia!" and "Mamma Mia! Here We Go Again" with fellow ABBA member and close friend Benny Andersson. He is the oldest member of the group. Early life. Björn Kristian Ulvaeus was born in Gothenburg on 25 April 1945. At aged 6, he moved with his family to Västervik, Kalmar County. His parents were Aina Eliza Viktoria (née Bengtsson; 1909–2005) and Erik Gunnar Ulvaeus (1912–1999). Ulvaeus has one sister, Eva Margareta (born 1948). Ulvaeus did military service. Career. Pre-ABBA. Before gaining international recognition with ABBA, Ulvaeus was a member of the Swedish folk-schlager band Hootenanny Singers, known earlier as the "West Bay Singers", who had an enormous following in Scandinavia. While on the road in southern Sweden in 1966, they encountered the Hep Stars, and Ulvaeus quickly became friends with the group's keyboard player, Benny Andersson. The two musicians shared a passion for songwriting, and each found a composing partner in the other. On meeting again that summer, they composed their first song together: "Isn't It Easy To Say", a song soon to be recorded by Andersson's group. The two continued teaming up for music, helping out each other's bands in the recording studio, and adding guitar or keyboards respectively to the recordings. In 1968, they composed two songs together: "A Flower in My Garden", recorded by Hep Stars, and their first real hit "Ljuva Sextiotal", performed by popular Swedish artist Brita Borg, for which Stig Anderson wrote lyrics. The latter, a cabarét-style ironic song about the 1960s, was submitted for the 1969 Swedish heats for the Eurovision Song Contest, but was rejected; it was later recorded by diva Brita Borg. Another hit came in 1969 with "Speleman", also recorded by Hep Stars.
While filming a nostalgic schlager special for television in May 1969, Björn met eighteen-year-old future wife and singer-songwriter Agnetha Fältskog. Björn Ulvaeus continued recording and touring with Hootenanny Singers to great acclaim while working as in-house producer at Polar Record Company (headed by future manager Stig Anderson), with Benny as his new partner. The twosome produced records by other artists and continued writing songs together. Polar artist Arne Lamberts Swedish version of "A Flower in My Garden" ("Fröken Blåklint") was one of Björn & Benny's first in-house productions. In December 1969, they recorded the new song "She's My Kind of Girl", which became their first single as a duo. It was released in March 1970, giving them a minor hit in Sweden and a top-ten hit in Japan two years later. The Hootenanny Singers entered Svensktoppen, the Swedish radio charts, in 1970 with "Omkring Tiggarn Från Luossa", a cover of an old folk-schlager song. It remained on the charts for 52 consecutive weeks, a record which endured until 1990; the song was produced by Björn and Benny, and had Ulvaeus's solo vocal and Benny's piano.
ABBA years. Björn Ulvaeus's girlfriend Agnetha Fältskog eventually joined Björn&Benny becoming Björn, Benny & Agnetha, Frida eventually shortening it to ABBA. Björn was the guitar player in the band, but he also sang lead vocals in the following songs: "People Need Love", "Merry Go Round", "Santa Rosa", "Another Town Another Train", "I Saw It in the Mirror", "Love Isn't Easy (But It Sure Is Hard Enough)", "He Is Your Brother", "Rock'n Roll Band", "She's My Kind of Girl", "Honey Honey", "Sitting in the Palmtree", "King King Song", "Watch Out, Man in the Middle, Rock Me, Crazy World", "Why Did It Have To Be Me?", "Summer Night City", "Does Your Mother Know", "Two for the Price Of One". On 6 July 1971, Björn and Agnetha married. On July 1980, Björn and Agnetha Fältskog divorced, and the band broke up shortly after the divorce. Post-ABBA. After ABBA went on hiatus in 1982, Ulvaeus and Andersson created the musicals "Chess", a collaboration with lyricist Tim Rice, "Kristina från Duvemåla" (based on "The Emigrants" novels by Swedish writer Vilhelm Moberg), and "Mamma Mia!" (based on ABBA songs).
Together with Andersson, Ulvaeus was nominated for the Drama Desk Award in the category "Outstanding Music" (for the musical "Chess"), and for a Tony Award in a category "Best Orchestrations" (for the musical "Mamma Mia!"). The original cast recordings for both musicals were nominated for a Grammy Award. For the 2004 semi-final of the Eurovision Song Contest in Istanbul, thirty years after ABBA had won the 1974 contest in Brighton, UK, Ulvaeus appeared briefly in a special comedy video made for the interval act, entitled "Our Last Video". Each of the four members of the group appeared briefly in cameo roles, as did others such as Cher and Rik Mayall. The video was not included in the official DVD release of the Eurovision Contest, but was issued as a separate DVD release. It was billed as the first time the four had worked together since the group split. In fact, they each filmed their appearances separately. Ulvaeus also shared with Andersson "The Special International Ivor Novello Award" from the British Academy of Songwriters, Composers and Authors, "The Music Export Prize" from the Swedish Ministry of Industry and Trade (2008), and "Lifetime Achievement Award" from the Swedish Music Publishers Association (SMFF).
On 15 April 2013, it was officially announced by the EBU and the SVT that Ulvaeus and Andersson, with the late Swedish DJ and record producer Avicii, had composed the anthem for the 2013 Eurovision Song Contest. The song was performed for the first time in the Final on 18 May. In 2016 American media reported that British entrepreneur Simon Fuller had approached Ulvaeus and other members of ABBA with his idea to create a virtual reality ABBA using new technology. In November that year Fuller was photographed in London meeting with Ulvaeus. In September 2017, Benny Andersson told Swedish newspaper "Expressen" that there were plans for ABBA to tour "virtually", using digital avatars of the group and Ulvaeus told the BBC that the idea had been proposed to the band by Simon Fuller. In April 2018, the four members issued a statement saying that during preparations for the tour, they had regrouped with Fuller in the studio and recorded two new songs, titled "I Still Have Faith in You" and "Don't Shut Me Down". In 2019, Ulvaeus worked with Swedish songwriter Andreas Carlsson to arrange an English dub of Tomas Ledin's jukebox musical film "En del av mitt hjärta" (English: "A Piece of My Heart") directed by Edward af Sillén. Ulvaeus was asked to write English lyrics for Ledin's songs as they are long-term friends.
In 2020, Björn Ulvaeus has been appointed President of CISAC, the International Confederation of Societies of Authors and Composers. On 2 September 2021, via YouTube livestream, ABBA announced their virtual concert residency "ABBA Voyage", as well as the release of a studio album, recorded between 2017 and 2021. The new record, their first in 40 years, features ten tracks, including "I Still Have Faith In You" and "Don't Shut Me Down", which were first shown in the aforementioned livestream event and released as a double A-side single. On 5 November 2021, the "Voyage" album was released worldwide, and on 27 May 2022, ABBA Voyage opened in a purpose-built venue named the ABBA Arena at the Queen Elizabeth Olympic Park in London. Since November 2021, Ulvaeus and British actor Ian McKellen have posted Instagram videos featuring the pair knitting Christmas jumpers and other festive attire. In 2023, it was revealed that Ulvaeus and McKellen would be knitting stagewear for Kylie Minogue as part of her "More Than Just a Residency" concert residency at Voltaire at The Venetian Las Vegas.
In October 2023, it was confirmed that Ulvaeus would be the keynote speaker for The Business Day at Bridlington Spa in the United Kingdom on Friday 7 June 2024. Ulvaeus is expected to discuss the creation of ABBA Voyage, leadership, entrepreneurship, artificial intelligence (AI), Technology, Innovation, Meta Data and the complexity of business in the music industry. Personal life. On 6 July 1971, Ulvaeus married Agnetha Fältskog. They had two children: Linda Elin Ulvaeus (born 23 February 1973), and Peter Christian Ulvaeus (born 4 December 1977). The couple separated in early 1979, and their divorce was finalised in July 1980. Ulvaeus married music journalist Lena Källersjö on 6 January 1981. They have two daughters. Ulvaeus and Källersjö lived on a private island in Djursholm, an upscale area in Danderyd Municipality north of Stockholm. From 1984 to 1990, they lived in the United Kingdom, where Ulvaeus founded an IT business with his brother. In February 2022, Ulvaeus and Källersjö announced their separation.
In 2021, while producing "Voyage", Ulvaeus met Christina Sas, a product manager at Universal Music Group, and they began dating the following year. Ulvaeus and Sas were married on 21 September 2024 in Copenhagen, Denmark. The ceremony was officiated by Sandi Toksvig. Ulvaeus is one of the four owners (along with Per Gessle) of NoteHeads, a Swedish company which publishes the music notation program Igor Engraver. Ulvaeus is a member of the International Humanist and Ethical Union's Swedish member organisation Humanisterna, and was awarded their annual prize, "Hedenius-priset", in 2006. Ulvaeus describes himself as an atheist. He has appeared on several shows discussing his views about religion. Ulvaeus suffered from severe long-term memory loss. However, in a 2009 interview, he stated that reports of his memory loss were "hugely exaggerated". In a TV interview with Fredrik Skavlan, Ulvaeus said the memory loss pertained to episodic memory. He said that, for instance, he was not nostalgic for his days with ABBA: "It was good while it lasted."
"The Guardian" called him Sweden's "highest-profile cash-free campaigner", explaining that "after his son was robbed several years ago, Ulvaeus became an evangelist for the electronic payment movement, claiming that cash was the primary cause of crime and that 'all activity in the black economy requires cash'". He has reportedly been living cash-free for more than a decade, and ABBA The Museum has operated cash-free since it opened in May 2013. Tax vindication. The Swedish Tax Agency accused Björn Ulvaeus of failing to pay 90 million kronor (US$12.8 million) in back taxes for eight years ending in 2005. The agency claimed that he "laundered" his music royalty income through institutions in several foreign countries. Ulvaeus paid the taxes as a precautionary measure during the 2½-year dispute. In October 2008, the county administrative court decided the case in Ulvaeus' favour, ruling that he never owed any of the 90 million kronor. Awards. On 21 March 2024, all four members of ABBA were appointed "Commander, First Class, of the Royal Order of Vasa" by His Majesty King Carl XVI Gustaf of Sweden. This was the first time in almost 50 years that the Swedish Royal Orders of Knighthood was bestowed on Swedes, also the 50th anniversary of ABBA winning the Eurovision Song Contest. ABBA shared the honour with nine other people.
Benny Andersson Göran Bror Benny Andersson (; born 16 December 1946) is a Swedish musician, composer and producer best known as a member of the pop group ABBA and co-composer of the musicals "Chess", "Kristina från Duvemåla", and "Mamma Mia!" For the 2008 film version of "Mamma Mia!" and its 2018 sequel, "Mamma Mia! Here We Go Again", he worked also as an executive producer. Since 2001, he has been active with his own band Benny Anderssons orkester. Early life. Göran Bror Benny Andersson was born 16 December 1946 in the Vasastan district of Stockholm to civil engineer Gösta Andersson (1912–1973) and his wife Laila (1920–1971). His sister Eva-Lis Andersson followed in 1948. Andersson's musical background comes from his father and grandfather (Efraim); they both enjoyed playing the accordion, and at six, Benny got his own. His father and grandfather taught him Swedish folk music, traditional music, and schlager. The first records Benny bought were "Du Bist Musik" by Italian schlager singer Caterina Valente and Elvis Presley's "Jailhouse Rock". He was especially impressed by the flip side, "Treat Me Nice", as this featured a piano. This variety of different kinds of music influenced him through the years.
At ten, Andersson got his own piano and taught himself to play. He was influenced by Brian Jones, left school at 15 and began to perform at youth clubs. This is when he met his first girlfriend Christina Grönvall, with whom he had two children: Peter (born 1963) and Heléne (born 1965). In early 1964, Benny and Christina joined "Elverkets Spelmanslag" ("The Electricity Board Folk Music Group"); the name was a punning reference to their electric instruments. Their repertoire consisted mainly of instrumentals, including "Baby Elephant Walk"; he also wrote his first songs. Career. Hep Stars (1964–1969). In October 1964 he joined the Hep Stars as keyboardist and they made a breakthrough in March 1965 with their hit "Cadillac", eventually becoming the most celebrated of the Swedish 1960s pop bands. Andersson secured his place as the band's keyboardist and musical driving force as well as a teen idol. The band performed mostly covers of international hits, but Andersson soon started writing his own material, and gave the band the classic hits "No Response", "Sunny Girl", "Wedding", "Consolation", "It's Nice To Be Back" and "She Will Love You", among others.
Before ABBA (1969–1972). Andersson met Björn Ulvaeus in June 1966, and the two men started writing songs together, their first being "Isn't It Easy To Say", eventually recorded by the Hep Stars. He also had a fruitful songwriting collaboration with Lasse Berghagen, with whom he wrote several songs and submitted "Hej, Clown" for the 1969 Melodifestivalen – the Swedish Eurovision Song Festival finals. The song finished in second place. During this contest, he met vocalist Anni-Frid Lyngstad, and they soon became a couple. Around the same time, his songwriting companion Ulvaeus met vocalist Agnetha Fältskog. The personal relationships and Andersson and Ulvaeus' songwriting collaboration led quite naturally to the very close cooperation which the four friends had during the following years. Benny and Björn scored their first hits as songwriters in the spring of 1969: "Ljuva sextital" (a hit with Brita Borg) and "Speleman" (a hit for the Hep Stars). As the two couples began supporting each other during recording sessions, the sound of the women's voices convinced the songwriters to model their 'group' on various MOR acts such as Blue Mink, Middle of the Road and Sweet.
ABBA (1972–1982). The group's breakthrough came with winning the Eurovision Song Contest for Sweden with "Waterloo" on 6 April 1974. During the next eight years, Andersson (together with Ulvaeus) wrote music for and produced eight studio albums with ABBA. The group achieved great success globally and scored a chain of No. 1 hits. With ABBA, Benny sang lead vocal on only one song – "Suzy-Hang-Around", from the "Waterloo" album. After ABBA: "Chess", "Kristina" and "Mamma Mia!" (1983–present). After ABBA, Andersson continued writing music with Ulvaeus. Their first project was the stage musical "Chess", written with Tim Rice. The "Chess" concept album – with vocals by Elaine Paige, Barbara Dickson, Murray Head and Swedes Tommy Körberg and Björn Skifs – was released in October 1984, selling two million copies worldwide. The Paige/Dickson duet "I Know Him So Well" became a major UK No. 1 hit, and Murray Head's "One Night in Bangkok" gave Andersson/Ulvaeus a US No. 3 hit. "Chess" was staged in London's West End Prince Edward Theatre in May 1986 and received mixed to positive reviews, running for about three years. A revised staging on Broadway in April 1988 received poor reviews, running for two months.
In 1985, Andersson produced and released an album with brother and sister Anders and Karin Glenmark, featuring new songs by Andersson/Ulvaeus. The duo named themselves Gemini, and a second album with more music by Björn and Benny was released in April 1987, containing the big hit "Mio My Mio"; also to be found on the soundtrack to the film "Mio in the Land of Faraway", for which Andersson co-produced the music. In 1987, Andersson released his first solo album "Klinga Mina Klockor" ("Chime, My Bells"). All the music was written by and performed by himself on accordion, backed by the "Orsa Spelmän" (Orsa Folk Musicians) on fiddles. A second solo album followed: "November 1989". In 1990, Andersson scored a Swedish No. 1 hit with "Lassie", sung by female cabaret group Ainbusk, for whom he also wrote the Svensktoppen hits "Älska Mig" and "Drömmarnas Golv". He decided to produce an album with Josefin Nilsson from this quartet, resulting in the 1993 English-language album "Shapes", featuring ten new Andersson/Ulvaeus compositions.
In 1992, he wrote the introduction melody for the European football championship, which was organised by Sweden that year. From the late 1980s, Andersson had worked on an idea for an epic Swedish language musical based on his affection for traditional folk music, and in October 1995, "Kristina från Duvemåla" premiered in Sweden. The musical was based on "The Emigrants" novels by Swedish writer Vilhelm Moberg. The musical ran successfully for almost five years, before closing in June 1999. An English-language version, simply titled "Kristina", was staged in concert at Carnegie Hall in New York City for two nights in September 2009, yielding a live recording, and at the Royal Albert Hall for one night in April 2010. Andersson's next project was "Mamma Mia!", a musical built around 24 of ABBA's songs, which has become a worldwide box-office blockbuster, with versions in several languages being played in many countries, including the UK (West End premiere in April 1999), Canada (Toronto premiere in 2000), the USA (Broadway premiere in 2001), and Sweden (Swedish language premiere in 2005).
For the 2004 semi-final of the Eurovision Song Contest, staged in Istanbul thirty years after ABBA had won the contest in Brighton, Benny appeared briefly in a special comedy video made for the interval act, entitled "Our Last Video". Each of the four members of the group appeared briefly in cameo roles, as did others such as Cher and Rik Mayall. The video was not included in the official DVD release of the Eurovision Contest, but was issued as a separate DVD release. It was billed as the first time the four had worked together since the group split; however, Frida's appearance was filmed separately. A film version of "Mamma Mia!" premiered on 18 July 2008. In April/May 2007, Andersson worked on the film soundtrack, re-recording the ABBA songs with musicians from the original ABBA recording sessions. "Mamma Mia! The Movie" has become the most successful film musical of all time, and the biggest-selling DVD ever in the UK. Benny Anderssons Orkester (2001–present). Andersson currently performs with his own band of 16 musicians, Benny Anderssons Orkester ("Benny Andersson's orchestra", BAO), with fellow Swedes Helen Sjöholm (of "Kristina from Duvemåla") and Tommy Körberg (of "Chess"), with lyrics to new material sometimes written by Björn Ulvaeus. BAO has released five albums to huge success in Sweden, all containing hit singles.
In 2009 BAO achieved a new record in Sweden on the Svensktoppen chart by staying there for 243 weeks with the song "Du är min man" ("You Are My Man"), sung by Sjöholm. New compositions (1984–present). Andersson composes primarily for his band BAO, with vocalists Sjöholm and Körberg, but he keeps his older material alive by re-visiting it, as in "Mamma Mia!" and the Swedish version of "Chess". For a compilation album of the Glenmark duo Gemini, Andersson had Björn Ulvaeus write new Swedish lyrics for the re-recording of two songs from 1984 and 1987. Andersson and Ulvaeus have continuously been writing new material; most recently the two wrote seven songs for Andersson's BAO 2011 album O klang och jubeltid, performed as usual by vocalists Sjöholm, Körberg and Kalle Moraeus. In July 2009, BAO, now named "The Benny Andersson Band", released their first international record, the album "The Story of a Heart". It was a compilation of 14 tracks from Andersson's five Swedish-language releases between 1987 and 2007, including five songs now recorded with lyrics by Ulvaeus in English, and the new title song premiered on BBC2's "Ken Bruce Show". A Swedish-language version of the title track, "Sommaren Du Fick" ("The Summer You Got"), was released as a single in Sweden prior to the English version, with vocals by Helen Sjöholm.
In the spring of 2009, Andersson also released a single recorded by the staff at his privately owned Stockholm hotel Hotel Rival, titled "2nd Best to None", accompanied by a video showing the staff at work. In 2008, Andersson and Ulvaeus wrote a song for Swedish singer Sissela Kyle, titled "Jag vill bli gammal" ("I Wanna Grow Old"), for her Stockholm stage show "Your Days Are Numbered", which was never recorded and released but did get a TV performance. Ulvaeus also contributed lyrics to ABBA's 1976 instrumental track "Arrival" for Sarah Brightman's cover version recorded for her 2008 album "A Winter Symphony". New English lyrics have also been written for Andersson's 1999 song "Innan Gryningen" (then also named "Millennium Hymn"), with the new title "The Silence of the Dawn" for Barbara Dickson was performed live, but not yet recorded and released. In 2007, they wrote the new song "Han som har vunnit allt" ("He Who's Won It All") for actor and singer Anders Ekborg. Ulvaeus wrote English lyrics for two older songs from Andersson's solo albums "I Walk with You Mama" ("Stockholm by Night", 1989) and "After the Rain" ("Efter regnet", 1987) for opera singer Anne Sofie Von Otter, for her Andersson tribute album "I Let the Music Speak". Barbara Dickson recorded an Ulvaeus and Andersson song called "The Day The Wall Came Tumbling Down"; the song eventually was released by Australian "Mamma Mia!" musical star Anne Wood's album of ABBA covers, "Divine Discontent". As of October 2012, Ulvaeus had mentioned writing new material with Andersson for a BAO Christmas release (also mentioned as a BAO box), and Andersson is busy writing music for a Swedish language obscure musical, "Hjälp Sökes" ("Help is Wanted") together with Kristina Lugn and Lars Rudolfsson, premiering 8 February 2013.
Andersson has also written music for a documentary film about Olof Palme, re-recording the track "Sorgmarch" from his last album as a theme throughout the film. The song ""Kärlekens Tid", recorded 2004 by Helen Sjöholm with BAO, has also been performed in concert in English (lyrics by Ylva Eggehorn) by opera baritone Bryn Terfel. On 15 April 2013, it was officially announced by the EBU and the SVT that Andersson, along with Ulvaeus and the late Stockholm based DJ and record producer Avicii, had composed the anthem for the 2013 Eurovision Song Contest. The song was performed for the first time in the Final on 18 May. A new album of Andersson compositions presented in a choral style was released on 18 September 2015. "Kärlekens Tid"" was produced in Andersson's Mono Music studio, under the direction of choirmaster Gustaf Sjökvist, who died before the album's release. Gustaf Sjökvists Choir, conducted by Cecilia Rydinger Alin, performed two concerts at Skeppsholmen on 20 September, featuring Benny Andersson on piano. The album includes songs in Swedish and English from a range of Andersson's projects, such as "Chess", "Kristina" and BAO.
In November 2018, Deutsche Grammophon released "Piano", a collection of ABBA tunes, tunes from Chess and original compositions all played by Andersson on solo piano. Andersson reunited with ABBA in 2018. On 2 September 2021, via YouTube livestream, ABBA announced their upcoming virtual concert residency "ABBA Voyage", as well as the imminent release of an eponymous album, recorded between 2017 and 2021. The new record, their first studio album in 40 years, features ten tracks, including "I Still Have Faith In You" and "Don't Shut Me Down", which also were first shown in the aforementioned livestream event and released as a double A-side single. On 5 November 2021, the "Voyage" album was released worldwide. On 27 May 2022, ABBA Voyage opened in a purpose-built venue named the ABBA Arena at the Queen Elizabeth Olympic Park in London. Film music. Andersson has written music to several films for screen and television; the first attempt in the early 1970s for the Swedish erotica movie "The Seduction of Inga"; the film was not a success, but the 'Björn & Benny' single "She's My Kind of Girl" surprised the composers by being released in Japan and becoming a Top 10 hit (the song renamed in Japan as "The Little Girl of the Cold Wind").
In 1987, Andersson wrote music and co-produced the soundtrack with Anders Eljas for the film "Mio in the Land of Faraway", based on Swedish author Astrid Lindgrens "Mio, My Son". The title song became a huge hit in Sweden for Gemini. In 2000, he wrote the music for fellow Swede (no relation) Roy Andersson's film "Songs from the Second Floor" (the music later re-recorded, featuring new lyrics, with BAO! with vocals by Helen Sjöholm). He also wrote the theme for Roy Andersson's next film, "You, the Living", from 2007. Andersson worked on the film adaptation of "Mamma Mia!". He also wrote the film score for the 2012 documentary "Palme" about Swedish prime minister Olof Palme. He later won a Guldbagge Award for Best Original Score, for that film at the 48th Guldbagge Awards. Awards. Together with Ulvaeus, Andersson was nominated for a Drama Desk Award in a category "Outstanding Music" (for the musical "Chess"), and for a Tony Award in a category "Best Orchestrations" (for musical "Mamma Mia!"). Original cast recordings of both musicals were nominated for a Grammy Award. Andersson/Ulvaeus also won a Touring Broadway Award for the musical "Mamma Mia" (best score).
During his post-ABBA career Andersson won four Swedish Grammis awards, and together with Ulvaeus received the "Special International" Ivor Novello award from 'The British Academy of Composers and Songwriters', twice "The Music Export Prize" from the Swedish Ministry of Industry and Trade (2008), as well as the "Lifetime Achievement" award from the Swedish Music Publishers Association (SMFF). In 2002, Andersson was given an honorary professorship by the Swedish Government for his "ability to create high-class music reaching people around the world". In 2007, he was elected a member of Royal Swedish Academy of Music, and in 2008 received an Honorary Doctorate from the Stockholm University Faculty of Humanities for contributing importantly both to the preservation and the growth of the Swedish folk music tradition. On 15 March 2010, Andersson appeared on stage in New York with former wife Anni-Frid Lyngstad to accept ABBA's award of induction into the Rock and Roll Hall of Fame. During his acceptance speech he reflected on the important influence of traditional European music and the melancholy of the Swedish soul on ABBA's brand of pop music. "If you live in a country like Sweden, with five, six months of snow, and the sun disappears totally for like two months, that would be reflected in the work of artists," he said. "It's definitely in the Swedish folk music, you can hear it in the Russian folk songs, you can hear in the music from Jean Sibelius or Edvard Grieg from Norway, you can see it in the eyes of Greta Garbo and you can hear it in the voice of Jussi Björling. And you can hear in the sound of Frida and Agnetha on some of our songs too."
In 2012, he received an Honorary Doctorate of Philosophy from the Luleå Tekniska Universitet Faculty of Humanities and Social Sciences. Andersson won the Swedish "Guldbaggen" award in 2012 as composer of the music for the film "Palme". For his album "Piano" he received the Opus Klassik award in 2018. On 21 March 2024, all four members of ABBA were appointed "Commander, First Class, of the Royal Order of Vasa" by His Majesty King Carl XVI Gustaf of Sweden. This was the first time in almost 50 years that the Swedish Royal Orders of Knighthood was bestowed on Swedes, also the 50th anniversary of ABBA winning the Eurovision Song Contest. ABBA shared the honour with nine other persons. Personal life. Andersson was engaged to Christina Grönvall. They have two children. The couple split in 1966 and Christina kept custody of the children as Andersson was then at the peak of his Hep Stars' success. In the 1990s, their son Peter Grönvall formed One More Time, a group that enjoyed European success with the ABBA-like "Highland" and, later, as Sweden's entry to the Eurovision Song Contest 1996.
Andersson was in a relationship with Anni-Frid Lyngstad of ABBA for about 11 years, from 1969 till 1980. They married on 6 October 1978, but separated on 26 November 1980 and divorced in 1981. He married Swedish TV presenter Mona Nörklit in 1981 and had a son, Ludvig. Ludvig is also one of the producers of the concert residency ABBA Voyage. Andersson was an alcoholic through much of his adult life. He has remained a teetotaler since 2001. Andersson did not disclose the extent of his substance abuse problems until a 2011 interview, at which point he had maintained nearly a decade of sobriety.
Bluetooth Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limited to 2.5 milliwatts, giving it a very short range of up to . It employs UHF radio waves in the ISM bands, from 2.402GHz to 2.48GHz. It is mainly used as an alternative to wired connections to exchange files between nearby portable devices and connect cell phones and music players with wireless headphones, wireless speakers, HIFI systems, car audio and wireless transmission between TVs and soundbars. Bluetooth is managed by the Bluetooth Special Interest Group (SIG), which has more than 35,000 member companies in the areas of telecommunication, computing, networking, and consumer electronics. The IEEE standardized Bluetooth as IEEE 802.15.1 but no longer maintains the standard. The Bluetooth SIG oversees the development of the specification, manages the qualification program, and protects the trademarks. A manufacturer must meet Bluetooth SIG standards to market it as a Bluetooth device. A network of patents applies to the technology, which is licensed to individual qualifying devices. , 4.7 billion Bluetooth integrated circuit chips are shipped annually. Bluetooth was first demonstrated in space in 2024, an early test envisioned to enhance IoT capabilities.
Etymology. The name "Bluetooth" was proposed in 1997 by Jim Kardach of Intel, one of the founders of the Bluetooth SIG. The name was inspired by a conversation with Sven Mattisson who related Scandinavian history through tales from Frans G. Bengtsson's "The Long Ships", a historical novel about Vikings and the 10th-century Danish king Harald Bluetooth. Upon discovering a picture of the runestone of Harald Bluetooth in the book "A History of the Vikings" by Gwyn Jones, Kardach proposed Bluetooth as the codename for the short-range wireless program which is now called Bluetooth. According to Bluetooth's official website, Bluetooth is the Anglicised version of the Scandinavian "Blåtand"/"Blåtann" (or in Old Norse "blátǫnn"). It was the epithet of King Harald Bluetooth, who united the disparate Danish tribes into a single kingdom; Kardach chose the name to imply that Bluetooth similarly unites communication protocols. The Bluetooth logo is a bind rune merging the Younger Futhark runes  (ᚼ, Hagall) and  (ᛒ, Bjarkan), Harald's initials.
History. The development of the "short-link" radio technology, later named Bluetooth, was initiated in 1989 by Nils Rydbeck, CTO at Ericsson Mobile in Lund, Sweden. The purpose was to develop wireless headsets, according to two inventions by Johan Ullman, and . Nils Rydbeck tasked Tord Wingren with specifying and Dutchman Jaap Haartsen and Sven Mattisson with developing. Both were working for Ericsson in Lund. Principal design and development began in 1994 and by 1997 the team had a workable solution. From 1997 Örjan Johansson became the project leader and propelled the technology and standardization. In 1997, Adalio Sanchez, then head of IBM ThinkPad product R&D, approached Nils Rydbeck about collaborating on integrating a mobile phone into a ThinkPad notebook. The two assigned engineers from Ericsson and IBM studied the idea. The conclusion was that power consumption on cellphone technology at that time was too high to allow viable integration into a notebook and still achieve adequate battery life. Instead, the two companies agreed to integrate Ericsson's short-link technology on both a ThinkPad notebook and an Ericsson phone to accomplish the goal.
Since neither IBM ThinkPad notebooks nor Ericsson phones were the market share leaders in their respective markets at that time, Adalio Sanchez and Nils Rydbeck agreed to make the short-link technology an open industry standard to permit each player maximum market access. Ericsson contributed the short-link radio technology, and IBM contributed patents around the logical layer. Adalio Sanchez of IBM then recruited Stephen Nachtsheim of Intel to join and then Intel also recruited Toshiba and Nokia. In May 1998, the Bluetooth SIG was launched with IBM and Ericsson as the founding signatories and a total of five members: Ericsson, Intel, Nokia, Toshiba, and IBM. The first Bluetooth device was revealed in 1999. It was a hands-free mobile headset that earned the "Best of show Technology Award" at COMDEX. The first Bluetooth mobile phone was the unreleased prototype Ericsson T36, though it was the revised Ericsson model T39 that actually made it to store shelves in June 2001. However Ericsson released the R520m in Quarter 1 of 2001, making the R520m the first ever commercially available Bluetooth phone. In parallel, IBM introduced the IBM ThinkPad A30 in October 2001 which was the first notebook with integrated Bluetooth.
Bluetooth's early incorporation into consumer electronics products continued at Vosi Technologies in Costa Mesa, California, initially overseen by founding members Bejan Amini and Tom Davidson. Vosi Technologies had been created by real estate developer Ivano Stegmenga, with United States Patent 608507, for communication between a cellular phone and a vehicle's audio system. At the time, Sony/Ericsson had only a minor market share in the cellular phone market, which was dominated in the US by Nokia and Motorola. Due to ongoing negotiations for an intended licensing agreement with Motorola beginning in the late 1990s, Vosi could not publicly disclose the intention, integration, and initial development of other enabled devices which were to be the first "Smart Home" internet connected devices. Vosi needed a means for the system to communicate without a wired connection from the vehicle to the other devices in the network. Bluetooth was chosen, since Wi-Fi was not yet readily available or supported in the public market. Vosi had begun to develop the Vosi Cello integrated vehicular system and some other internet connected devices, one of which was intended to be a table-top device named the Vosi Symphony, networked with Bluetooth. Through the negotiations with Motorola, Vosi introduced and disclosed its intent to integrate Bluetooth in its devices. In the early 2000s a legal battle ensued between Vosi and Motorola, which indefinitely suspended release of the devices. Later, Motorola implemented it in their devices, which initiated the significant propagation of Bluetooth in the public market due to its large market share at the time.
In 2012, Jaap Haartsen was nominated by the European Patent Office for the European Inventor Award. Implementation. Bluetooth operates at frequencies between 2.402 and 2.480GHz, or 2.400 and 2.4835GHz, including guard bands 2MHz wide at the bottom end and 3.5MHz wide at the top. This is in the globally unlicensed (but not unregulated) industrial, scientific and medical (ISM) 2.4GHz short-range radio frequency band. Bluetooth uses a radio technology called frequency-hopping spread spectrum. Bluetooth divides transmitted data into packets, and transmits each packet on one of 79 designated Bluetooth channels. Each channel has a bandwidth of 1MHz. It usually performs 1600hops per second, with adaptive frequency-hopping (AFH) enabled. Bluetooth Low Energy uses 2MHz spacing, which accommodates 40 channels. Originally, Gaussian frequency-shift keying (GFSK) modulation was the only modulation scheme available. Since the introduction of Bluetooth 2.0+EDR, π/4-DQPSK (differential quadrature phase-shift keying) and 8-DPSK modulation may also be used between compatible devices. Devices functioning with GFSK are said to be operating in basic rate (BR) mode, where an instantaneous bit rate of 1Mbit/s is possible. The term "Enhanced Data Rate" ("EDR") is used to describe π/4-DPSK (EDR2) and 8-DPSK (EDR3) schemes, transferring 2 and 3Mbit/s respectively.
In 2019, Apple published an extension called HDR which supports data rates of 4 (HDR4) and 8 (HDR8) Mbit/s using π/4-DQPSK modulation on 4 MHz channels with forward error correction (FEC). Bluetooth is a packet-based protocol with a master/slave architecture. One master may communicate with up to seven slaves in a piconet. All devices within a given piconet use the clock provided by the master as the base for packet exchange. The master clock ticks with a period of 312.5μs, two clock ticks then make up a slot of 625μs, and two slots make up a slot pair of 1250μs. In the simple case of single-slot packets, the master transmits in even slots and receives in odd slots. The slave, conversely, receives in even slots and transmits in odd slots. Packets may be 1, 3, or 5 slots long, but in all cases, the master's transmission begins in even slots and the slave's in odd slots. The above excludes Bluetooth Low Energy, introduced in the 4.0 specification, which uses the same spectrum but somewhat differently. Communication and connection.
A master BR/EDR Bluetooth device can communicate with a maximum of seven devices in a piconet (an ad hoc computer network using Bluetooth technology), though not all devices reach this maximum. The devices can switch roles, by agreement, and the slave can become the master (for example, a headset initiating a connection to a phone necessarily begins as master—as an initiator of the connection—but may subsequently operate as the slave). The Bluetooth Core Specification provides for the connection of two or more piconets to form a scatternet, in which certain devices simultaneously play the master/leader role in one piconet and the slave role in another. At any given time, data can be transferred between the master and one other device (except for the little-used broadcast mode). The master chooses which slave device to address; typically, it switches rapidly from one device to another in a round-robin fashion. Since it is the master that chooses which slave to address, whereas a slave is (in theory) supposed to listen in each receive slot, being a master is a lighter burden than being a slave. Being a master of seven slaves is possible; being a slave of more than one master is possible. The specification is vague as to required behavior in scatternets.
Uses. Bluetooth is a standard wire-replacement communications protocol primarily designed for low power consumption, with a short range based on low-cost transceiver microchips in each device. Because the devices use a radio (broadcast) communications system, they do not have to be in visual line of sight of each other; however, a "quasi optical" wireless path must be viable. Bluetooth classes and power use. Historically, the Bluetooth range was defined by the radio class, with a lower class (and higher output power) having larger range. The actual range of a given link depends on several qualities of both communicating devices and the air and obstacles in between. The primary attributes affecting range are the data rate, protocol (Bluetooth Classic or Bluetooth Low Energy), transmission power, and receiver sensitivity, and the relative orientations and gains of both antennas. The effective range varies depending on propagation conditions, material coverage, production sample variations, antenna configurations and battery conditions. Most Bluetooth applications are for indoor conditions, where attenuation of walls and signal fading due to signal reflections make the range far lower than specified line-of-sight ranges of the Bluetooth products.
Most Bluetooth applications are battery-powered Class 2 devices, with little difference in range whether the other end of the link is a Class 1 or Class 2 device as the lower-powered device tends to set the range limit. In some cases the effective range of the data link can be extended when a Class 2 device is connecting to a Class 1 transceiver with both higher sensitivity and transmission power than a typical Class 2 device. In general, however, Class 1 devices have sensitivities similar to those of Class 2 devices. Connecting two Class 1 devices with both high sensitivity and high power can allow ranges far in excess of the typical 100 m, depending on the throughput required by the application. Some such devices allow open field ranges of up to 1 km and beyond between two similar devices without exceeding legal emission limits. Bluetooth profile. To use Bluetooth wireless technology, a device must be able to interpret certain Bluetooth profiles. For example, Profiles are definitions of possible applications and specify general behaviors that Bluetooth-enabled devices use to communicate with other Bluetooth devices. These profiles include settings to parameterize and to control the communication from the start. Adherence to profiles saves the time for transmitting the parameters anew before the bi-directional link becomes effective. There are a wide range of Bluetooth profiles that describe many different types of applications or use cases for devices.
Devices. Bluetooth exists in numerous products such as telephones, speakers, tablets, media players, robotics systems, laptops, and game console equipment as well as some high definition headsets, modems, hearing aids and even watches. Bluetooth is useful when transferring information between two or more devices that are near each other in low-bandwidth situations. Bluetooth is commonly used to transfer sound data with telephones (i.e., with a Bluetooth headset) or byte data with hand-held computers (transferring files). Bluetooth protocols simplify the discovery and setup of services between devices. Bluetooth devices can advertise all of the services they provide. This makes using services easier, because more of the security, network address and permission configuration can be automated than with many other network types. Computer requirements. A personal computer that does not have embedded Bluetooth can use a Bluetooth adapter that enables the PC to communicate with Bluetooth devices. While some desktop computers and most recent laptops come with a built-in Bluetooth radio, others require an external adapter, typically in the form of a small USB "dongle".
Unlike its predecessor, IrDA, which requires a separate adapter for each device, Bluetooth lets multiple devices communicate with a computer over a single adapter. Operating system implementation. For Microsoft platforms, Windows XP Service Pack 2 and SP3 releases work natively with Bluetooth v1.1, v2.0 and v2.0+EDR. Previous versions required users to install their Bluetooth adapter's own drivers, which were not directly supported by Microsoft. Microsoft's own Bluetooth dongles (packaged with their Bluetooth computer devices) have no external drivers and thus require at least Windows XP Service Pack 2. Windows Vista RTM/SP1 with the Feature Pack for Wireless or Windows Vista SP2 work with Bluetooth v2.1+EDR. Windows 7 works with Bluetooth v2.1+EDR and Extended Inquiry Response (EIR). The Windows XP and Windows Vista/Windows 7 Bluetooth stacks support the following Bluetooth profiles natively: PAN, SPP, DUN, HID, HCRP. The Windows XP stack can be replaced by a third party stack that supports more profiles or newer Bluetooth versions. The Windows Vista/Windows 7 Bluetooth stack supports vendor-supplied additional profiles without requiring that the Microsoft stack be replaced. Windows 8 and later support Bluetooth Low Energy (BLE). It is generally recommended to install the latest vendor driver and its associated stack to be able to use the Bluetooth device at its fullest extent.
Apple products have worked with Bluetooth since Mac OSX v10.2, which was released in 2002. Linux has two popular Bluetooth stacks, BlueZ and Fluoride. The BlueZ stack is included with most Linux kernels and was originally developed by Qualcomm. Fluoride, earlier known as Bluedroid is included in Android OS and was originally developed by Broadcom. There is also Affix stack, developed by Nokia. It was once popular, but has not been updated since 2005. FreeBSD has included Bluetooth since its v5.0 release, implemented through netgraph. NetBSD has included Bluetooth since its v4.0 release. Its Bluetooth stack was ported to OpenBSD as well, however OpenBSD later removed it as unmaintained. DragonFly BSD has had NetBSD's Bluetooth implementation since 1.11 (2008). A netgraph-based implementation from FreeBSD has also been available in the tree, possibly disabled until 2014-11-15, and may require more work. Specifications and features. The specifications were formalized by the Bluetooth Special Interest Group (SIG) and formally announced on 20 May 1998. In 2014 it had a membership of over 30,000 companies worldwide. It was established by Ericsson, IBM, Intel, Nokia and Toshiba, and later joined by many other companies.
All versions of the Bluetooth standards are backward-compatible with all earlier versions. The Bluetooth Core Specification Working Group (CSWG) produces mainly four kinds of specifications: Bluetooth 1.2. Major enhancements include: Bluetooth 2.0 + EDR. This version of the Bluetooth Core Specification was released before 2005. The main difference is the introduction of an Enhanced Data Rate (EDR) for faster data transfer. The data rate of EDR is 3Mbit/s, although the maximum data transfer rate (allowing for inter-packet time and acknowledgements) is 2.1Mbit/s. EDR uses a combination of GFSK and phase-shift keying modulation (PSK) with two variants, π/4-DQPSK and 8-DPSK. EDR can provide a lower power consumption through a reduced duty cycle. The specification is published as "Bluetooth v2.0 + EDR", which implies that EDR is an optional feature. Aside from EDR, the v2.0 specification contains other minor improvements, and products may claim compliance to "Bluetooth v2.0" without supporting the higher data rate. At least one commercial device states "Bluetooth v2.0 without EDR" on its data sheet.
Bluetooth 2.1 + EDR. Bluetooth Core Specification version 2.1 + EDR was adopted by the Bluetooth SIG on 26 July 2007. The headline feature of v2.1 is secure simple pairing (SSP): this improves the pairing experience for Bluetooth devices, while increasing the use and strength of security. Version 2.1 allows various other improvements, including "extended inquiry response" (EIR), which provides more information during the inquiry procedure to allow better filtering of devices before connection; and sniff subrating, which reduces the power consumption in low-power mode. Bluetooth 3.0 + HS. Version 3.0 + HS of the Bluetooth Core Specification was adopted by the Bluetooth SIG on 21 April 2009. Bluetooth v3.0 + HS provides theoretical data transfer speeds of up to 24 Mbit/s, though not over the Bluetooth link itself. Instead, the Bluetooth link is used for negotiation and establishment, and the high data rate traffic is carried over a colocated 802.11 link. The main new feature is (Alternative MAC/PHY), the addition of 802.11 as a high-speed transport. The high-speed part of the specification is not mandatory, and hence only devices that display the "+HS" logo actually support Bluetooth over 802.11 high-speed data transfer. A Bluetooth v3.0 device without the "+HS" suffix is only required to support features introduced in Core Specification version 3.0 or earlier Core Specification Addendum 1.
Ultra-wideband. The high-speed (AMP) feature of Bluetooth v3.0 was originally intended for UWB, but the WiMedia Alliance, the body responsible for the flavor of UWB intended for Bluetooth, announced in March 2009 that it was disbanding, and ultimately UWB was omitted from the Core v3.0 specification. On 16 March 2009, the WiMedia Alliance announced it was entering into technology transfer agreements for the WiMedia Ultra-wideband (UWB) specifications. WiMedia has transferred all current and future specifications, including work on future high-speed and power-optimized implementations, to the Bluetooth Special Interest Group (SIG), Wireless USB Promoter Group and the USB Implementers Forum. After successful completion of the technology transfer, marketing, and related administrative items, the WiMedia Alliance ceased operations. In October 2009, the Bluetooth Special Interest Group suspended development of UWB as part of the alternative MAC/PHY, Bluetooth v3.0 + HS solution. A small, but significant, number of former WiMedia members had not and would not sign up to the necessary agreements for the IP transfer. As of 2009, the Bluetooth SIG was in the process of evaluating other options for its longer-term roadmap.
Bluetooth 4.0. The Bluetooth SIG completed the Bluetooth Core Specification version 4.0 (called Bluetooth Smart) and has been adopted . It includes "Classic Bluetooth", "Bluetooth high speed" and "Bluetooth Low Energy" (BLE) protocols. Bluetooth high speed is based on Wi-Fi, and Classic Bluetooth consists of legacy Bluetooth protocols. Bluetooth Low Energy, previously known as Wibree, is a subset of Bluetooth v4.0 with an entirely new protocol stack for rapid build-up of simple links. As an alternative to the Bluetooth standard protocols that were introduced in Bluetooth v1.0 to v3.0, it is aimed at very low power applications powered by a coin cell. Chip designs allow for two types of implementation, dual-mode, single-mode and enhanced past versions. The provisional names "Wibree" and "Bluetooth ULP" (Ultra Low Power) were abandoned and the BLE name was used for a while. In late 2011, new logos "Bluetooth Smart Ready" for hosts and "Bluetooth Smart" for sensors were introduced as the general-public face of BLE.
Compared to "Classic Bluetooth", Bluetooth Low Energy is intended to provide considerably reduced power consumption and cost while maintaining a similar communication range. In terms of lengthening the battery life of Bluetooth devices, represents a significant progression. Cost-reduced single-mode chips, which enable highly integrated and compact devices, feature a lightweight Link Layer providing ultra-low power idle mode operation, simple device discovery, and reliable point-to-multipoint data transfer with advanced power-save and secure encrypted connections at the lowest possible cost. General improvements in version 4.0 include the changes necessary to facilitate BLE modes, as well the Generic Attribute Profile (GATT) and Security Manager (SM) services with AES Encryption. Core Specification Addendum 2 was unveiled in December 2011; it contains improvements to the audio Host Controller Interface and to the High Speed (802.11) Protocol Adaptation Layer. Core Specification Addendum 3 revision 2 has an adoption date of 24 July 2012.
Core Specification Addendum 4 has an adoption date of 12 February 2013. Bluetooth 4.1. The Bluetooth SIG announced formal adoption of the Bluetooth v4.1 specification on 4 December 2013. This specification is an incremental software update to Bluetooth Specification v4.0, and not a hardware update. The update incorporates Bluetooth Core Specification Addenda (CSA 1, 2, 3 & 4) and adds new features that improve consumer usability. These include increased co-existence support for LTE, bulk data exchange rates—and aid developer innovation by allowing devices to support multiple roles simultaneously. New features of this specification include: Some features were already available in a Core Specification Addendum (CSA) before the release of v4.1. Bluetooth 4.2. Released on 2 December 2014, it introduces features for the Internet of things. The major areas of improvement are: Older Bluetooth hardware may receive 4.2 features such as Data Packet Length Extension and improved privacy via firmware updates. Bluetooth 5.
The Bluetooth SIG released Bluetooth 5 on 6 December 2016. Its new features are mainly focused on new Internet of Things technology. Sony was the first to announce Bluetooth 5.0 support with its Xperia XZ Premium in Feb 2017 during the Mobile World Congress 2017. The Samsung Galaxy S8 launched with Bluetooth 5 support in April 2017. In September 2017, the iPhone 8, 8 Plus and iPhone X launched with Bluetooth 5 support as well. Apple also integrated Bluetooth 5 in its new HomePod offering released on 9 February 2018. Marketing drops the point number; so that it is just "Bluetooth 5" (unlike Bluetooth 4.0); the change is for the sake of "Simplifying our marketing, communicating user benefits more effectively and making it easier to signal significant technology updates to the market." Bluetooth 5 provides, for BLE, options that can double the data rate (2Mbit/s burst) at the expense of range, or provide up to four times the range at the expense of data rate. The increase in transmissions could be important for Internet of Things devices, where many nodes connect throughout a whole house. Bluetooth 5 increases capacity of connectionless services such as location-relevant navigation of low-energy Bluetooth connections.
The major areas of improvement are: Features added in CSA5 – integrated in v5.0: The following features were removed in this version of the specification: Bluetooth 5.1. The Bluetooth SIG presented Bluetooth 5.1 on 21 January 2019. The major areas of improvement are: Features added in Core Specification Addendum (CSA) 6 – integrated in v5.1: The following features were removed in this version of the specification: Bluetooth 5.2. On 31 December 2019, the Bluetooth SIG published the Bluetooth Core Specification version 5.2. The new specification adds new features: Bluetooth 5.3. The Bluetooth SIG published the Bluetooth Core Specification version 5.3 on 13 July 2021. The feature enhancements of Bluetooth 5.3 are: The following features were removed in this version of the specification: Bluetooth 5.4. The Bluetooth SIG released the Bluetooth Core Specification version 5.4 on 7 February 2023. This new version adds the following features: Bluetooth 6.0. The Bluetooth SIG released the Bluetooth Core Specification version 6.0 on 27 August 2024. This version adds the following features:
Technical information. Architecture. Software. Seeking to extend the compatibility of Bluetooth devices, the devices that adhere to the standard use an interface called HCI (Host Controller Interface) between the host and the controller. High-level protocols such as the SDP (Protocol used to find other Bluetooth devices within the communication range, also responsible for detecting the function of devices in range), RFCOMM (Protocol used to emulate serial port connections) and TCS (Telephony control protocol) interact with the baseband controller through the L2CAP (Logical Link Control and Adaptation Protocol). The L2CAP protocol is responsible for the segmentation and reassembly of the packets. Hardware. The hardware that makes up the Bluetooth device is made up of, logically, two parts; which may or may not be physically separate. A radio device, responsible for modulating and transmitting the signal; and a digital controller. The digital controller is likely a CPU, one of whose functions is to run a Link Controller; and interfaces with the host device; but some functions may be delegated to hardware. The Link Controller is responsible for the processing of the baseband and the management of ARQ and physical layer FEC protocols. In addition, it handles the transfer functions (both asynchronous and synchronous), audio coding (e.g. SBC (codec)) and data encryption. The CPU of the device is responsible for attending the instructions related to Bluetooth of the host device, in order to simplify its operation. To do this, the CPU runs software called Link Manager that has the function of communicating with other devices through the LMP protocol.
A Bluetooth device is a short-range wireless device. Bluetooth devices are fabricated on RF CMOS integrated circuit (RF circuit) chips. Bluetooth protocol stack. Bluetooth is defined as a layer protocol architecture consisting of core protocols, cable replacement protocols, telephony control protocols, and adopted protocols. Mandatory protocols for all Bluetooth stacks are LMP, L2CAP and SDP. In addition, devices that communicate with Bluetooth almost universally can use these protocols: HCI and RFCOMM. Link Manager. The Link Manager (LM) is the system that manages establishing the connection between devices. It is responsible for the establishment, authentication and configuration of the link. The Link Manager locates other managers and communicates with them via the management protocol of the LMP link. To perform its function as a service provider, the LM uses the services included in the Link Controller (LC). The Link Manager Protocol basically consists of several PDUs (Protocol Data Units) that are sent from one device to another. The following is a list of supported services:
Host Controller Interface. The Host Controller Interface provides a command interface between the controller and the host. Logical Link Control and Adaptation Protocol. The "Logical Link Control and Adaptation Protocol" (L2CAP) is used to multiplex multiple logical connections between two devices using different higher level protocols. Provides segmentation and reassembly of on-air packets. In "Basic" mode, L2CAP provides packets with a payload configurable up to 64 kB, with 672 bytes as the default MTU, and 48 bytes as the minimum mandatory supported MTU. In "Retransmission and Flow Control" modes, L2CAP can be configured either for isochronous data or reliable data per channel by performing retransmissions and CRC checks. Bluetooth Core Specification Addendum 1 adds two additional L2CAP modes to the core specification. These modes effectively deprecate original Retransmission and Flow Control modes: Reliability in any of these modes is optionally and/or additionally guaranteed by the lower layer Bluetooth BDR/EDR air interface by configuring the number of retransmissions and flush timeout (time after which the radio flushes packets). In-order sequencing is guaranteed by the lower layer.
Only L2CAP channels configured in ERTM or SM may be operated over AMP logical links. Service Discovery Protocol. The "Service Discovery Protocol" (SDP) allows a device to discover services offered by other devices, and their associated parameters. For example, when you use a mobile phone with a Bluetooth headset, the phone uses SDP to determine which Bluetooth profiles the headset can use (Headset Profile, Hands Free Profile (HFP), Advanced Audio Distribution Profile (A2DP) etc.) and the protocol multiplexer settings needed for the phone to connect to the headset using each of them. Each service is identified by a Universally unique identifier (UUID), with official services (Bluetooth profiles) assigned a short form UUID (16 bits rather than the full 128). Radio Frequency Communications. "Radio Frequency Communications" (RFCOMM) is a cable replacement protocol used for generating a virtual serial data stream. RFCOMM provides for binary data transport and emulates EIA-232 (formerly RS-232) control signals over the Bluetooth baseband layer, i.e., it is a serial port emulation.
RFCOMM provides a simple, reliable, data stream to the user, similar to TCP. It is used directly by many telephony related profiles as a carrier for AT commands, as well as being a transport layer for OBEX over Bluetooth. Many Bluetooth applications use RFCOMM because of its widespread support and publicly available API on most operating systems. Additionally, applications that used a serial port to communicate can be quickly ported to use RFCOMM. Bluetooth Network Encapsulation Protocol. The "Bluetooth Network Encapsulation Protocol" (BNEP) is used for transferring another protocol stack's data via an L2CAP channel. Its main purpose is the transmission of IP packets in the Personal Area Networking Profile. BNEP performs a similar function to SNAP in Wireless LAN. Audio/Video Control Transport Protocol. The "Audio/Video Control Transport Protocol" (AVCTP) is used by the remote control profile to transfer AV/C commands over an L2CAP channel. The music control buttons on a stereo headset use this protocol to control the music player.
Audio/Video Distribution Transport Protocol. The "Audio/Video Distribution Transport Protocol" (AVDTP) is used by the advanced audio distribution (A2DP) profile to stream music to stereo headsets over an L2CAP channel intended for video distribution profile in the Bluetooth transmission. Telephony Control Protocol. The "Telephony Control Protocol– Binary" (TCS BIN) is the bit-oriented protocol that defines the call control signaling for the establishment of voice and data calls between Bluetooth devices. Additionally, "TCS BIN defines mobility management procedures for handling groups of Bluetooth TCS devices." TCS-BIN is only used by the cordless telephony profile, which failed to attract implementers. As such it is only of historical interest. Adopted protocols. Adopted protocols are defined by other standards-making organizations and incorporated into Bluetooth's protocol stack, allowing Bluetooth to code protocols only when necessary. The adopted protocols include: Baseband error correction. Depending on packet type, individual packets may be protected by error correction, either 1/3 rate forward error correction (FEC) or 2/3 rate. In addition, packets with CRC will be retransmitted until acknowledged by automatic repeat request (ARQ).
Setting up connections. Any Bluetooth device in "discoverable mode" transmits the following information on demand: Any device may perform an inquiry to find other devices to connect to, and any device can be configured to respond to such inquiries. However, if the device trying to connect knows the address of the device, it always responds to direct connection requests and transmits the information shown in the list above if requested. Use of a device's services may require pairing or acceptance by its owner, but the connection itself can be initiated by any device and held until it goes out of range. Some devices can be connected to only one device at a time, and connecting to them prevents them from connecting to other devices and appearing in inquiries until they disconnect from the other device. Every device has a unique 48-bit address. However, these addresses are generally not shown in inquiries. Instead, friendly Bluetooth names are used, which can be set by the user. This name appears when another user scans for devices and in lists of paired devices.
Most cellular phones have the Bluetooth name set to the manufacturer and model of the phone by default. Most cellular phones and laptops show only the Bluetooth names and special programs are required to get additional information about remote devices. This can be confusing as, for example, there could be several cellular phones in range named T610 (see Bluejacking). Pairing and bonding. Motivation. Many services offered over Bluetooth can expose private data or let a connecting party control the Bluetooth device. Security reasons make it necessary to recognize specific devices, and thus enable control over which devices can connect to a given Bluetooth device. At the same time, it is useful for Bluetooth devices to be able to establish a connection without user intervention (for example, as soon as in range). To resolve this conflict, Bluetooth uses a process called "bonding", and a bond is generated through a process called "pairing". The pairing process is triggered either by a specific request from a user to generate a bond (for example, the user explicitly requests to "Add a Bluetooth device"), or it is triggered automatically when connecting to a service where (for the first time) the identity of a device is required for security purposes. These two cases are referred to as dedicated bonding and general bonding respectively.
Pairing often involves some level of user interaction. This user interaction confirms the identity of the devices. When pairing completes, a bond forms between the two devices, enabling those two devices to connect in the future without repeating the pairing process to confirm device identities. When desired, the user can remove the bonding relationship. Implementation. During pairing, the two devices establish a relationship by creating a shared secret known as a "link key". If both devices store the same link key, they are said to be "paired" or "bonded". A device that wants to communicate only with a bonded device can cryptographically authenticate the identity of the other device, ensuring it is the same device it previously paired with. Once a link key is generated, an authenticated ACL link between the devices may be encrypted to protect exchanged data against eavesdropping. Users can delete link keys from either device, which removes the bond between the devices—so it is possible for one device to have a stored link key for a device it is no longer paired with.
Bluetooth services generally require either encryption or authentication and as such require pairing before they let a remote device connect. Some services, such as the Object Push Profile, elect not to explicitly require authentication or encryption so that pairing does not interfere with the user experience associated with the service use-cases. Pairing mechanisms. Pairing mechanisms changed significantly with the introduction of Secure Simple Pairing in Bluetooth v2.1. The following summarizes the pairing mechanisms: SSP is considered simple for the following reasons: Security concerns. Prior to Bluetooth v2.1, encryption is not required and can be turned off at any time. Moreover, the encryption key is only good for approximately 23.5 hours; using a single encryption key longer than this time allows simple XOR attacks to retrieve the encryption key. Bluetooth v2.1 addresses this in the following ways: Link keys may be stored on the device file system, not on the Bluetooth chip itself. Many Bluetooth chip manufacturers let link keys be stored on the device—however, if the device is removable, this means that the link key moves with the device.
Security. Overview. Bluetooth implements confidentiality, authentication and key derivation with custom algorithms based on the SAFER+ block cipher. Bluetooth key generation is generally based on a Bluetooth PIN, which must be entered into both devices. This procedure might be modified if one of the devices has a fixed PIN (e.g., for headsets or similar devices with a restricted user interface). During pairing, an initialization key or master key is generated, using the E22 algorithm. The E0 stream cipher is used for encrypting packets, granting confidentiality, and is based on a shared cryptographic secret, namely a previously generated link key or master key. Those keys, used for subsequent encryption of data sent via the air interface, rely on the Bluetooth PIN, which has been entered into one or both devices. An overview of Bluetooth vulnerabilities exploits was published in 2007 by Andreas Becker. In September 2008, the National Institute of Standards and Technology (NIST) published a Guide to Bluetooth Security as a reference for organizations. It describes Bluetooth security capabilities and how to secure Bluetooth technologies effectively. While Bluetooth has its benefits, it is susceptible to denial-of-service attacks, eavesdropping, man-in-the-middle attacks, message modification, and resource misappropriation. Users and organizations must evaluate their acceptable level of risk and incorporate security into the lifecycle of Bluetooth devices. To help mitigate risks, included in the NIST document are security checklists with guidelines and recommendations for creating and maintaining secure Bluetooth piconets, headsets, and smart card readers.