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8e07a85f7e65a036a4417ba28ff081e9
https://www.britannica.com/topic/propositional-calculus
Propositional calculus
Propositional calculus Propositional calculus, also called Sentential Calculus, in logic, symbolic system of treating compound and complex propositions and their logical relationships. As opposed to the predicate calculus, the propositional calculus employs simple, unanalyzed propositions rather than terms or noun exp...
1e9bda927793b8470ac0591220a195b0
https://www.britannica.com/topic/proscription
Proscription
Proscription Proscription, Latin proscriptio, plural proscriptiones, in ancient Rome, a posted notice listing Roman citizens who had been declared outlaws and whose goods were confiscated. Rewards were offered to anyone killing or betraying the proscribed, and severe penalties were inflicted on anyone harbouring them....
0b7e32e90683a81ca2c94189e3c2d1b7
https://www.britannica.com/topic/prosecutor
Prosecutor
Prosecutor Prosecutor, government official charged with bringing defendants in criminal cases to justice in the name of the state. Although responsibilities vary from one jurisdiction to another, many prosecutors are in charge of all phases of a criminal proceeding, from investigation by the police through trial and b...
3b64d155709ec1d126e79dab9ce780be
https://www.britannica.com/topic/prostitution
Prostitution
Prostitution Prostitution, the practice of engaging in relatively indiscriminate sexual activity, in general with someone who is not a spouse or a friend, in exchange for immediate payment in money or other valuables. Prostitutes may be female or male or transgender, and prostitution may entail heterosexual or homosex...
bc94df867ae091786717864b080a7b70
https://www.britannica.com/topic/protectionism
Protectionism
Protectionism Protectionism, policy of protecting domestic industries against foreign competition by means of tariffs, subsidies, import quotas, or other restrictions or handicaps placed on the imports of foreign competitors. Protectionist policies have been implemented by many countries despite the fact that virtuall...
d2a164caf91232fcee8059ec5f388f0e
https://www.britannica.com/topic/Protestantism/Events-under-Charles-I
Events under Charles I
Events under Charles I Despite the presence of controversy, Puritan and non-Puritan Protestants under Elizabeth and James had been united by adherence to a broadly Calvinistic theology of grace. Much of Whitgift’s restraint in handling Puritans, for instance, can be traced to the prevailing Calvinist consensus he share...
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https://www.britannica.com/topic/Protestantism/The-Anabaptists
The Anabaptists
The Anabaptists The radicals restricted their biblicism to the New Testament and espoused three tenets that have come to be axiomatic in the United States: the separation of church and state, the voluntary church, and religious liberty. They called themselves Baptists but were called Anabaptists by their enemies becaus...
0792380aed8b3bc8ee3e9a285059df1c
https://www.britannica.com/topic/Protestantism/The-role-of-John-Knox
The role of John Knox
The role of John Knox In Scotland the Reformation is associated with the name of John Knox, who declared that one celebration of the mass is worse than a cup of poison. He faced the very real threat that Mary, Queen of Scots, would do for Scotland what Mary Tudor had done for England. Therefore, Knox defied her in pers...
24eacdb536dfce85204169fd93ae90c6
https://www.britannica.com/topic/Proto-Semitic-language
Proto-Semitic language
Proto-Semitic language , Proto-Chadic or Proto-Semitic), or a hypothetical common sound of origin. Languages are said to be genetically related when they meet two criteria: they match in phonology, vocabulary, and grammar in such a way that they can be systematically related to a common protolanguage, and the matches c...
23b8934e60d7ca9c16b61a8805e63a93
https://www.britannica.com/topic/Protocols-of-the-Elders-of-Zion
Protocols of the Elders of Zion
Protocols of the Elders of Zion Protocols of the Elders of Zion, also called Protocols of the Learned Elders of Zion, fraudulent document that served as a pretext and rationale for anti-Semitism mainly in the early 20th century. The document purported to be a report of a series of 24 (in other versions, 27) meetings h...
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https://www.britannica.com/topic/Providence-Plantation
Providence Plantation
Providence Plantation …to become one colony called Providence Plantation in Narragansett Bay. …commission, which in 1644 incorporated Providence Plantations, afterward Rhode Island. In this office he attempted to secure a guarantee of religious liberty in the colonies. The city of Warwick, R.I., is named for him.
5e2db9915a82f32f76c523924682f045
https://www.britannica.com/topic/Providence-theology
Providence
Providence Providence, the quality in divinity on which humankind bases the belief in a benevolent intervention in human affairs and the affairs of the world. The forms that this belief takes differ, depending on the context of the religion and the culture in which they function. In one view, the concept of providence...
c25b3a31f2b5eb6a452b109b670eff26
https://www.britannica.com/topic/pruning
Pruning
Pruning Pruning, in horticulture, the removal or reduction of parts of a plant, tree, or vine that are not requisite to growth or production, are no longer visually pleasing, or are injurious to the health or development of the plant. Pruning is common practice in orchard and vineyard management for the improvement of...
776c7d7f4d426089109cfcd8fadda08f
https://www.britannica.com/topic/PSA-Peugeot-Citroen-SA
PSA Group
PSA Group PSA Group, French Groupe PSA, formerly PSA Peugeot Citroën, major French automotive manufacturer and holding company that was formed from the merger of Peugeot and Citroën in 1976. It is one of Europe’s largest carmakers. Its headquarters are in Paris. Peugeot’s origins trace to 1810, when brothers Jean-Pier...
3cdfb2ba426cac31df8cc601c23b8620
https://www.britannica.com/topic/psychocultural-interpretation-theory
Psychocultural interpretation theory
Psychocultural interpretation theory …Marc Howard Ross, drawing on psychocultural interpretation theory, defines ethnic identity as originating in “shared, deeply rooted worldviews” that shape group members’ relationships with others, their actions, and their motives. Ethnic identity cannot be changed, only made more ...
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https://www.britannica.com/topic/Ptolemaic-dynasty
Ptolemaic dynasty
Ptolemaic dynasty Until the day when he openly assumed an independent kingship as Ptolemy I Soter, on November 7, 305 bce, Ptolemy used only the title satrap of Egypt, but the great hieroglyphic Satrap stela, which he had inscribed in 311 bce, indicates a degree… Under the Ptolemies, whose rule followed Alexander’s, pr...
83d8b95dbfafb597a7b7d8d35b98578c
https://www.britannica.com/topic/public-administration
Public administration
Public administration Public administration, the implementation of government policies. Today public administration is often regarded as including also some responsibility for determining the policies and programs of governments. Specifically, it is the planning, organizing, directing, coordinating, and controlling of...
aa01de5eb900b077ba1f118de8879574
https://www.britannica.com/topic/public-bad
Public bad
Public bad A public bad is similarly defined to be a “bad” that is non-excludable and nondepletable. For example, polluted air is a public bad, for the same reasons that clean air is a public good.
3d4e391c1265eae20917a6da6399d5a3
https://www.britannica.com/topic/public-education
Public education
Public education …services, the right to a public education, and the right to use public facilities. Civil rights are an essential component of democracy; when individuals are being denied opportunities to participate in political society, they are being denied their civil rights. In contrast to civil liberties, which ...
34fe66fcef127e17503ea93e79a75400
https://www.britannica.com/topic/Public-Enemy
Public Enemy
Public Enemy Public Enemy, American rap group whose dense, layered sound and radical political message made them among the most popular, controversial, and influential hip-hop artists of the late 1980s and early ’90s. The original members were Chuck D (original name Carlton Ridenhour; b. August 1, 1960, Queens, New Yo...
99dfac8144c1a74d238ce364d12fc30a
https://www.britannica.com/topic/public-housing
Public housing
Public housing Public housing, form of government-subsidized housing. Public housing often provides homes to people who earn significantly less than the average national income, though some countries do not set income ceilings. Public housing projects, which usually take the form of large apartment complexes situated ...
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https://www.britannica.com/topic/public-investment
Public investment
Public investment Public investment, investment by the state in particular assets, whether through central or local governments or through publicly owned industries or corporations. Public investment has arisen historically from the need to provide certain goods, infrastructure, or services that are deemed to be of vi...
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https://www.britannica.com/topic/public-law
Public law
Public law …found in the area of public law. England has no written constitution and restricts judicial review, whereas every court in the United States possesses the power to pass judgment on the conformity of legislation and on other official actions to constitutional norms. Throughout the 20th century and beyond, ma...
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https://www.britannica.com/topic/public-opinion
Public opinion
Public opinion Public opinion, an aggregate of the individual views, attitudes, and beliefs about a particular topic, expressed by a significant proportion of a community. Some scholars treat the aggregate as a synthesis of the views of all or a certain segment of society; others regard it as a collection of many diff...
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https://www.britannica.com/topic/public-opinion-poll
Opinion poll
Opinion poll Opinion poll, a method for collecting information about the views or beliefs of a given group. Information from an opinion poll can shed light on and potentially allow inferences to be drawn about certain attributes of a larger population. Opinion polls typically involve a sample of respondents, drawn to ...
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https://www.britannica.com/topic/public-sector
Public sector
Public sector Public sector, portion of the economy composed of all levels of government and government-controlled enterprises. It does not include private companies, voluntary organizations, and households. The general definition of the public sector includes government ownership or control rather than mere function ...
33299cd7614488878015331d00fd6fca
https://www.britannica.com/topic/publishing
History of publishing
History of publishing History of publishing, an account of the selection, preparation, and marketing of printed matter from its origins in ancient times to the present. The activity has grown from small beginnings into a vast and complex industry responsible for the dissemination of all manner of cultural material; it...
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https://www.britannica.com/topic/publishing/The-first-newspapers
The first newspapers
The first newspapers Newspaper development can be seen in three phases: first, the sporadic forerunners, gradually moving toward regular publication; second, more or less regular journals but liable to suppression and subject to censorship and licensing; and, third, a phase in which direct censorship was abandoned but ...
7e2a2b9ca58625fec6979ea2e78104f0
https://www.britannica.com/topic/pukka
Pukka
Pukka …classes of housing in Pakistan: pukka houses, built of substantial material such as stone, brick, cement, concrete, or timber; katchi (or kuchha [“ramshackle”]) houses, constructed of less-durable material (e.g., mud, bamboo, reeds, or thatch); and semi-pukka houses, which are a mix between the two. Housing stoc...
5b3bfaae9c16af63d751890f172abf00
https://www.britannica.com/topic/Pulitzer-Prize
Pulitzer Prize
Pulitzer Prize Pulitzer Prize, any of a series of annual prizes awarded by Columbia University, New York City, for outstanding public service and achievement in American journalism, letters, and music. Fellowships are also awarded. The prizes, originally endowed with a gift of $500,000 from the newspaper magnate Josep...
01a19f0705e0be66d82e9f7a43645cb4
https://www.britannica.com/topic/Pullman-Palace-Car-Company
Pullman Palace Car Company
Pullman Palace Car Company …and maids employed by the Pullman Company, a manufacturer and operator of railroad cars. The BSCP embodied Randolph’s belief that segregation and racism were linked to the unfair distribution of wealth and power that condemned tens of millions of black and white Americans to chronic misery. ...
93be4dea226fb7cf8b0b7d09d5d1eb8e
https://www.britannica.com/topic/Punch-British-periodical
Punch
Punch Punch, in full Punch, orthe London Charivari, English illustrated periodical published from 1841 to 1992 and 1996 to 2002, famous for its satiric humour and caricatures and cartoons. The first editors, of what was then a weekly radical paper, were Henry Mayhew, Mark Lemon, and Joseph Stirling Coyne. Among the mo...
dfb253f10e9d9f75cf8f71a9fdfc5f5e
https://www.britannica.com/topic/punitive-damages
Punitive damages
Punitive damages Punitive damages, also called exemplary damages, legal damages a judge or a jury may grant a plaintiff to punish and make an example of the defendant. Punitive damages are generally meted out in only the most extreme circumstances, usually in breaches of obligation with significant evidence of oppress...
be638d86bcd0daee6b2e05dd7715457b
https://www.britannica.com/topic/Purana
Purana
Purana Purana, (Sanskrit: “Ancient”) in the sacred literature of Hinduism, any of a number of popular encyclopaedic collections of myth, legend, and genealogy, varying greatly as to date and origin. Puranas were written almost entirely in narrative couplets, in much the same easy flowing style as the two great Sanskri...
6def90717f852db9d2b351f81df00b91
https://www.britannica.com/topic/purchasing-power
Purchasing power
Purchasing power …units—not in units of constant purchasing power. Changes in purchasing power—that is, changes in the average level of prices of goods and services—have two effects. First, net monetary assets (essentially cash and receivables minus liabilities calling for fixed monetary payments) lose purchasing power...
6490a50af55dae4b6fe1671fdcf11190
https://www.britannica.com/topic/Purim
Purim
Purim Purim, (Hebrew: “Lots”) English Feast of Lots, a joyous Jewish festival commemorating the survival of the Jews who, in the 5th century bce, were marked for death by their Persian rulers. The story is related in the biblical Book of Esther. Purim is celebrated on Friday, February 26, 2021. Haman, chief minister o...
963fcedba91401f2eb2d85bca4c5b7ae
https://www.britannica.com/topic/Puritanism
Puritanism
Puritanism Puritanism, a religious reform movement in the late 16th and 17th centuries that sought to “purify” the Church of England of remnants of the Roman Catholic “popery” that the Puritans claimed had been retained after the religious settlement reached early in the reign of Queen Elizabeth I. Puritans became not...
c7e0b9e6fc457da30aa15475d89d87c4
https://www.britannica.com/topic/Purple-Heart
Purple Heart
Purple Heart Purple Heart, the first U.S. military decoration, instituted by General George Washington in 1782 and awarded for bravery in action. The records show that only three men received it during the American Revolution, all of them noncommissioned officers. Two of these coveted badges still exist. The original ...
45a362802f2365ee6089cad981d993fd
https://www.britannica.com/topic/Pushkin-Fine-Arts-Museum
Pushkin Fine Arts Museum
Pushkin Fine Arts Museum Pushkin Fine Arts Museum, formally State Fine Arts Museum in the Name of A.S. Pushkin, Russian Gosudarstvenny Muzey Izobrazitelnykh Iskusstv Imini A.S. Pushkina, collection in Moscow, Russia, of ancient and medieval art and western European painting, sculpture, and graphic arts. It was founded...
095def7295e81c48dfe29b8bfe523b0c
https://www.britannica.com/topic/Putnam-family-American-colonial-family
Putnam family
Putnam family …Town’s wealthy merchants, and the Putnams, who sought greater autonomy for the village and were the standard-bearers for the less-prosperous farm families. Squabbles over property were commonplace, and litigiousness was rampant. …to be enemies of the Putnams, and Putnam family members and in-laws would e...
10cbeede81fe7a86930b43f8aec33810
https://www.britannica.com/topic/Pygmalion
Pygmalion
Pygmalion Pygmalion, in Greek mythology, a king who was the father of Metharme and, through her marriage to Cinyras, the grandfather of Adonis, according to Apollodorus of Athens. The Roman poet Ovid, in his Metamorphoses, Book X, relates that Pygmalion, a sculptor, makes an ivory statue representing his ideal of woma...
aceb1f6667444637da1da0a6570ce245
https://www.britannica.com/topic/Pygmalion-play-by-Shaw
Pygmalion
Pygmalion Pygmalion, romance in five acts by George Bernard Shaw, produced in German in 1913 in Vienna. It was performed in England in 1914, with Mrs. Patrick Campbell as Eliza Doolittle. The play is a humane comedy about love and the English class system. Henry Higgins, a phonetician, accepts a bet that simply by cha...
e32035071a8a691772052713e9d0a360
https://www.britannica.com/topic/Q-biblical-literature
Q
Q Q, in the study of biblical literature, a hypothetical Greek-language proto-Gospel that might have been in circulation in written form about the time of the composition of the Synoptic Gospels—Mark, Matthew, and Luke—approximately between 65 and ad 95. The name Q, coined by the German theologian and biblical scholar...
de9d7d59bcdc3f2efd0406c968a7cfa2
https://www.britannica.com/topic/Qajar-dynasty
Qājār dynasty
Qājār dynasty Qājār dynasty, the ruling dynasty of Iran from 1794 to 1925. In 1779, following the death of Moḥammad Karīm Khān Zand, the Zand dynasty ruler of southern Iran, Āghā Moḥammad Khān (reigned 1779–97), a leader of the Turkmen Qājār tribe, set out to reunify Iran. By 1794 he had eliminated all his rivals, inc...
0177c0a8e7bc9a569365efa025b91a44
https://www.britannica.com/topic/Qarakhanid-dynasty
Qarakhanid Dynasty
Qarakhanid Dynasty Qarakhanid Dynasty, also spelled Karakhanid, also called Ilek Khanid, Turkic dynasty (999–1211) that ruled in Transoxania in Central Asia. The Qarakhanids, who belonged to the Qarluq tribal confederation, became prominent during the 9th century. With the disintegration of the Iranian Sāmānid dynasty...
38fd41e481ac98bd131a7bffcd783821
https://www.britannica.com/topic/qi-Chinese-philosophy
Qi
Qi Qi, (Chinese: “steam,” “breath,” “vital energy,” “vital force,” “material force,” “matter-energy,” “organic material energy,” or “pneuma”) Wade-Giles romanization ch’i, in Chinese philosophy, medicine, and religion, the psychophysical energies that permeate the universe. Early Daoist philosophers and alchemists, wh...
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https://www.britannica.com/topic/Qin-dynasty
Qin dynasty
Qin dynasty Qin dynasty, Qin also spelled Kin or (Wade-Giles romanization) Ch’in, dynasty that established the first great Chinese empire. The Qin—which lasted only from 221 to 207 bce but from which the name China is derived—established the approximate boundaries and basic administrative system that all subsequent Ch...
85384f0a55feabd082472eed9a08ea65
https://www.britannica.com/topic/Quarter-Day
Quarter days
Quarter days Quarter days, the days that begin each quarter of the year. In England they are March 25 (Lady Day), June 24 (Midsummer Day), September 29 (Michaelmas Day), and December 25 (Christmas Day). Some local variations of these dates are found. They are the days on which it is usually contracted that rents shoul...
e1df947ceda8fa9ab8975b783d977dd3
https://www.britannica.com/topic/Quechua
Quechua
Quechua Quechua, Quechua Runa, South American Indians living in the Andean highlands from Ecuador to Bolivia. They speak many regional varieties of Quechua, which was the language of the Inca empire (though it predates the Inca) and which later became the lingua franca of the Spanish and Indians throughout the Andes. ...
ced6dbbc19f8f3b1985af6e7f229f6f6
https://www.britannica.com/topic/Queens-Bench-Division
Queen's Bench Division
Queen's Bench Division Queen’s Bench Division, also called (during a kingship) King’s Bench Division, formerly Court of Queen’s Bench, in England and Wales, one of three divisions of the High Court of Justice, the others being the Chancery Division (formerly the Court of Chancery) and the Family Division. Formerly one...
4225d1d08812fc8f46bcd33e00eafb1d
https://www.britannica.com/topic/question
Question
Question …(high final pitch), indicates a question. The logic of questions and answers, also known as erotetic logic, can be approached in different ways. The most general approach treats it as a branch of epistemic logic. The connection is mediated by what are known as the “desiderata” of questions. Given a direct que...
315fab49c7faf5298eed9d12c0806187
https://www.britannica.com/topic/QuickTime
QuickTime
QuickTime QuickTime, file-compression and translation format developed by Apple Computer that facilitates the distribution of audio-visual material over computer networks such as the Internet and contributes to the multimedia environment of the World Wide Web (the leading information retrieval service of the Internet)...
8abd01f592f77aea9a7b8eaa95ca92d3
https://www.britannica.com/topic/quilombo
Quilombo
Quilombo Quilombo, also called mocambo, in colonial Brazil, a community organized by fugitive slaves. Quilombos were located in inaccessible areas and usually consisted of fewer than 100 people who survived by farming and raiding. The largest and most famous was Palmares, which grew into an autonomous republic and by ...
661c0193e9cf3fe9e6c8e2b9a34fc6a5
https://www.britannica.com/topic/Quo-Vadis-film-by-LeRoy
Quo Vadis
Quo Vadis Quo Vadis (1951), MGM’s \$7 million epic about the persecution of Christians under the Roman emperor Nero, had actually been initiated in 1949 with John Huston directing, but LeRoy took over the production, which was filmed on location in Rome over six grueling months. The… …the Roman emperor Nero in Quo Vadi...
2936d8a9c10a07235419b8db9d1c84d4
https://www.britannica.com/topic/Quran
Qurʾān
Qurʾān Qurʾān, (Arabic: “Recitation”) also spelled Quran and Koran, the sacred scripture of Islam. According to conventional Islamic belief, the Qurʾān was revealed by the angel Gabriel to the Prophet Muhammad in the West Arabian towns Mecca and Medina beginning in 610 and ending with Muhammad’s death in 632 ce. The w...
ad89e8f6b88c68c2919cbfe29a768fdf
https://www.britannica.com/topic/Rabbinic-Judaism
Rabbinic Judaism
Rabbinic Judaism Rabbinic Judaism, the normative form of Judaism that developed after the fall of the Temple of Jerusalem (ad 70). Originating in the work of the Pharisaic rabbis, it was based on the legal and commentative literature in the Talmud, and it set up a mode of worship and a life discipline that were to be ...
0f29b3fc4a607109a71f7677e0b6391d
https://www.britannica.com/topic/race-human
Race
Race Race, the idea that the human species is divided into distinct groups on the basis of inherited physical and behavioral differences. Genetic studies in the late 20th century refuted the existence of biogenetically distinct races, and scholars now argue that “races” are cultural interventions reflecting specific a...
6aa5c6ef59ba1040862239f7b56b29fb
https://www.britannica.com/topic/race-human/Gobineaus-Essay-on-the-Inequality-of-Human-Races
Gobineau’s Essay on the Inequality of Human Races
Gobineau’s Essay on the Inequality of Human Races The most important promoter of racial ideology in Europe during the mid-19th century was Joseph-Arthur, comte de Gobineau, who had an almost incalculable effect on late 19th-century social theory. Published in 1853–55, his Essay on the Inequality of Human Races was wide...
6bc0fbb39a0e94678549d835c3edd075
https://www.britannica.com/topic/race-human/Hereditarian-ideology-and-European-constructions-of-race
Hereditarian ideology and European constructions of race
Hereditarian ideology and European constructions of race Inheritance as the basis of individual social position is an ancient tenet of human history, extending to some point after the beginnings of agriculture (about 10,000 bce). Expressions of it are found throughout the world in kinship-based societies where genealog...
7d7845467dcfeeb60e3b68c982ee2dec
https://www.britannica.com/topic/race-human/Indias-caste-system
India’s caste system
India’s caste system India has a huge population encompassing many obvious physical variations, from light skins to some of the darkest in the world and a wide variety of hair textures and facial features. Such variations there, as elsewhere, are a product of natural selection in tropical and semitropical environments,...
e6b882bde7e770d35ae5caac78cfeea5
https://www.britannica.com/topic/race-human/Scientific-classifications-of-race
Scientific classifications of race
Scientific classifications of race In publications issued from 1735 to 1759, Linnaeus classified all the then-known animal forms. He included humans with the primates and established the use of both genus and species terms for identification of all animals. For the human species, he introduced the still-current scienti...
78ebba3226d5ce863b75dd37253a39dc
https://www.britannica.com/topic/race-human/The-history-of-the-idea-of-race
The history of the idea of race
The history of the idea of race Race as a categorizing term referring to human beings was first used in the English language in the late 16th century. Until the 18th century it had a generalized meaning similar to other classifying terms such as type, sort, or kind. Occasional literature of Shakespeare’s time referred ...
10e78ea0264466b646a51602aec71f63
https://www.britannica.com/topic/radical-feminism
Radical feminism
Radical feminism …approach taken by liberal feminism, radical feminism aimed to reshape society and restructure its institutions, which they saw as inherently patriarchal. Providing the core theory for modern feminism, radicals argued that women’s subservient role in society was too closely woven into the social fabric...
336b708d0298632545f5782f1a796fb3
https://www.britannica.com/topic/Radical-Party-political-party-France
Radical Party
Radical Party …as a member of the Radical Party from Vaucluse département. Daladier quickly made his mark in Paris. In June 1924 he joined the first Herriot government as the minister of colonies. In the turbulent years from 1925 to 1933 he served in several different Cabinets as minister of war, minister…
8e0eed8999bce94e42d8b9b1163faab3
https://www.britannica.com/topic/Radical-Socialist-Party
Radical-Socialist Party
Radical-Socialist Party Radical-Socialist Party, in full Radical Republican and Radical-Socialist Party, French Parti Radical, French in full Parti Républicain Radical et Radical-Socialiste, the oldest of the French political parties, officially founded in 1901 but tracing back to “radical” groups of the 19th century....
d8609d135b62a76aa371c7970026e10a
https://www.britannica.com/topic/radio
Radio
Radio Radio, sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers. From its birth early in the 20th century, broadcast radio astonished and delighted the public...
bb8e346d5c4cfd365635a01dd61cf08e
https://www.britannica.com/topic/Radziwill-family
Radziwiłł family
Radziwiłł family Radziwiłł family, an important Polish–Lithuanian princely family that played a significant role in Polish–Lithuanian history. Prince Mikołaj I (d. 1509) started a long line of Radziwiłł palatines of Wilno (Vilnius) when he was named to that post in 1492; he was chancellor of Lithuania at the same time...
d6743d51695b5ec16cf44d76bacf7828
https://www.britannica.com/topic/Raiders-of-the-Lost-Ark
Raiders of the Lost Ark
Raiders of the Lost Ark …Belushi and Dan Aykroyd—Spielberg directed Raiders of the Lost Ark (1981), a loving, expert (if slightly redundant) tribute to old adventure serials. The film and its sequels, which starred Harrison Ford as handsome archaeologist Indiana Jones, used rich colour cinematography, brisk editing, me...
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https://www.britannica.com/topic/Railroad-Tycoon
Railroad Tycoon
Railroad Tycoon Railroad Tycoon, train business simulation game created by American game designer Sid Meier and the electronic game manufacturer MicroProse Software. The title debuted in 1990 and helped launch the successful Tycoon line of games. The game was praised for its unique premise, which combined attributes o...
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https://www.britannica.com/topic/Railway-Labor-Act
Railway Labor Act
Railway Labor Act Passage of the Railway Labor Act by the U.S. Congress in May 1926 provided cause for optimism for Randolph and the porters. The act stipulated that all disputes over wages, rules, and working conditions involving railroad workers were to be settled promptly through negotiations between labour and mana...
eeb5b0fd6f986cf1b8e21782606c55fc
https://www.britannica.com/topic/raisin
Raisin
Raisin Raisin, dried fruit of certain varieties of grape. Raisin grapes were grown as early as 2000 bc in Persia and Egypt, and dried grapes are mentioned in the Bible (Numbers 6:3) during the time of Moses. David (Israel’s future king) was presented with “a hundred clusters of raisins” (1 Samuel 25:18), probably som...
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https://www.britannica.com/topic/rajjuka
Rajjuka
Rajjuka …rural areas, such as the rajjukas (surveyors), combined judicial functions with assessment duties. Fines constituted the most common form of punishment, although capital punishment was imposed in extreme cases. Provinces were subdivided into districts and these again into smaller units. The village was the bas...
1dc772efd43fff82dbfe92ac5ed5384d
https://www.britannica.com/topic/Ram-Raiyas
Rām Rāiyā
Rām Rāiyā Rām Rāiyā, member of a group of dissenters within Sikhism, a religion of India. The Rām Rāiyās are descendants of Rām Rāī, the eldest son of Gurū Har Rāī (1630–61), who was sent by his father as an emissary to the Mughal capital at Delhi. There he won the confidence of the emperor Aurangzeb but the displeas...
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https://www.britannica.com/topic/Rama-Hindu-deity
Rama
Rama Rama, one of the most widely worshipped Hindu deities, the embodiment of chivalry and virtue. Although there are three Ramas mentioned in Indian tradition—Parashurama, Balarama, and Ramachandra—the name is specifically associated with Ramachandra, the seventh incarnation (avatar) of Vishnu. His story is told brie...
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https://www.britannica.com/topic/Ramayana-Indian-epic
Ramayana
Ramayana Ramayana, (Sanskrit: “Rama’s Journey”) shorter of the two great epic poems of India, the other being the Mahabharata (“Great Epic of the Bharata Dynasty”). The Ramayana was composed in Sanskrit, probably not before 300 bce, by the poet Valmiki and in its present form consists of some 24,000 couplets divided i...
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https://www.britannica.com/topic/Rambo-Last-Blood
Rambo: Last Blood
Rambo: Last Blood … (2008; Stallone also directed), and Rambo: Last Blood (2019)—all of which featured physical prowess, dazzling special effects, and constant action. Stallone continued that formula in such thrillers as Demolition Man (1993), Cliffhanger (1993), which he also cowrote, The Specialist (1994), Assassins ...
9fa8ea656f2fd19523f88c96c6e2257c
https://www.britannica.com/topic/Ramcharitmanas
Ramcharitmanas
Ramcharitmanas Ramcharitmanas, (Hindi: “Sacred Lake of the Acts of Rama”) version, written in a dialect of Hindi, of the Sanskrit epic poem the Ramayana, one of the masterpieces of medieval Hindu literature and a work with significant influence on modern Hinduism. Written in the 16th century by the poet Tulsidas, the ...
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https://www.britannica.com/topic/Ran
Ran
Ran Kurosawa’s next film, Ran (1985; “Chaos”), was an even more successful samurai epic. An adaptation of Shakespeare’s King Lear set in 16th-century Japan, the film uses sons instead of daughters as the aging monarch’s ungrateful children. Ran was acclaimed as one of Kurosawa’s greatest films in the grandeur… …five fi...
19d07c0ad6e9b1d1f46988ff395037ad
https://www.britannica.com/topic/rand-South-African-currency
Rand
Rand Rand, monetary unit of South Africa. Each rand is divided into 100 cents. The South African Reserve Bank has the exclusive authority to issue coins and banknotes in the country. Coins range in denomination from 5 cents to 50 rand. Banknotes are denominated in values from 10 to 200 rand. During the apartheid era, ...
814a9d1079b9cf9cfc93eaf23ffda6e3
https://www.britannica.com/topic/random-matrix
Random matrix
Random matrix …models using what are called random matrices. These are square arrays of numbers in which each number is chosen at random, perhaps in conformity with some appropriate general requirement on the property of the resulting matrix. Random matrices studied in physics have statistical properties similar to the...
8c0b703c913ef9859afae76c186e24d7
https://www.britannica.com/topic/random-variable
Random variable
Random variable Random variable, In statistics, a function that can take on either a finite number of values, each with an associated probability, or an infinite number of values, whose probabilities are summarized by a density function. Used in studying chance events, it is defined so as to account for all possible o...
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https://www.britannica.com/topic/Rango-animated-film
Rango
Rango In the animated western Rango (2011), Depp provided the voice of the title character, a chameleon who becomes the sheriff of a colourful desert town. He then played an 18th-century vampire awakening in the 1970s in Dark Shadows (2012), Burton’s comedic adaptation of the cult-favourite soap opera of the…
47427fb53dba302ecb4879b4ff806c1d
https://www.britannica.com/topic/rape-crime
Rape
Rape Rape, unlawful sexual activity, most often involving sexual intercourse, against the will of the victim through force or the threat of force or with an individual who is incapable of giving legal consent because of minor status, mental illness, mental deficiency, intoxication, unconsciousness, or deception. In m...
3b4a51d7d75817190bbc6824edf1ea18
https://www.britannica.com/topic/rape-crime/Rape-as-a-weapon-of-war
Rape as a weapon of war
Rape as a weapon of war The rape of women by soldiers during wartime has occurred throughout history. Indeed, rape was long considered an unfortunate but inevitable accompaniment of war—the result of the prolonged sexual deprivation of troops and insufficient military discipline. Its use as a weapon of war was gruesome...
b4c02cfd76a21fdb495a420d3ab3bc18
https://www.britannica.com/topic/Rasselas
Rasselas
Rasselas Rasselas, in full The History of Rasselas, Prince of Abissinia, philosophical romance by Samuel Johnson published in 1759 as The Prince of Abissinia. Supposedly written in the space of a week, with the impending expenses of Johnson’s mother’s funeral in mind, Rasselas explores and exposes the vanity of the hu...
c4cc50953e5990abbd2d2de8a15a0adc
https://www.britannica.com/topic/rationalism
Rationalism
Rationalism Rationalism, in Western philosophy, the view that regards reason as the chief source and test of knowledge. Holding that reality itself has an inherently logical structure, the rationalist asserts that a class of truths exists that the intellect can grasp directly. There are, according to the rationalists,...
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https://www.britannica.com/topic/rationalism/Epistemological-rationalism-in-modern-philosophies
Epistemological rationalism in modern philosophies
Epistemological rationalism in modern philosophies The first modern rationalist was Descartes, an original mathematician whose ambition was to introduce into philosophy the rigour and clearness that delighted him in mathematics. He set out to doubt everything in the hope of arriving in the end at something indubitable....
2b425c24d055926a443260ff7176548c
https://www.britannica.com/topic/rationalism/Religious-rationalism
Religious rationalism
Religious rationalism Stirrings of religious rationalism were already felt in the Middle Ages regarding the Christian revelation. Thus, the skeptical mind of Peter Abelard (1079–1142) raised doubts by showing in his Sic et non (“Yes and No”) many contradictions among beliefs handed down as revealed truths by the Church...
91f9a4ca0c6adf9b521934c0f5ce0235
https://www.britannica.com/topic/rawi
Rāwī
Rāwī Rāwī, (Arabic: “reciter”), in Arabic literature, professional reciter of poetry. The rāwīs preserved pre-Islāmic poetry in oral tradition until it was written down in the 8th century. One or more rāwīs attached themselves to a particular poet and learned his works by heart. They then recited and explained the po...
5ed4d86f00002e7481179797efecf397
https://www.britannica.com/topic/Ray-by-Hannah
Ray
Ray …fully in the short novel Ray (1980). Hannah’s other novels include The Tennis Handsome (1983), which portrays the misadventures of a dissipated professional tennis player; Hey Jack! (1987); Never Die (1991), an offbeat treatment of the western genre; and Yonder Stands Your Orphan (2001), which tells the stories of...
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https://www.britannica.com/topic/RCA-Corporation
RCA Corporation
RCA Corporation RCA Corporation, formerly (1919–69) Radio Corporation Of America, major American electronics and broadcasting conglomerate that is a unit of General Electric Company. Among its subsidiaries is the National Broadcasting Company (NBC). Headquarters are in New York City. RCA was founded as Radio Corporati...
d7187f7d3388b6a1d39709020bb2aa46
https://www.britannica.com/topic/Rdio
Rdio
Rdio In 2010 they created Rdio, a subscription-based music-streaming service. Rdio struggled, however, and in 2015 it was agreed that the service’s key assets would be sold to competitor Pandora for some \$75 million. As part of the deal, Rdio also filed for bankruptcy protection. Friis’s later ventures included Starsh...
2ff911eadb3289b559f2f89f7a532335
https://www.britannica.com/topic/reading-education
Reading
Reading Primary symptoms include extremely poor reading skills owing to no apparent cause, a tendency to read and write words and letters in reversed sequences, similar reversals of words and letters in the person’s speech, and illegible handwriting. The teaching of reading involved an analytical method that made the p...
b4e50aceab1e1eb79dc20f0042a1fb0a
https://www.britannica.com/topic/real-estate-agent
Real estate agent
Real estate agent …are the powers of the real estate agent, who may show the land and state the asking price to the potential buyer without ordinarily being empowered to make further representations. The store salesman is similarly restricted in his power to represent his principal and can usually do no more than…
535506b331f27c2f8f147a87f9900cac
https://www.britannica.com/topic/Real-Genius
Real Genius
Real Genius …first major Hollywood studio movie, Real Genius. Her other feature films included Rambling Rose (1991); Lost in Yonkers (1993), based on Neil Simon’s award-winning play; Angie (1994), a feminist film that examines the friendship between two women as one of them faces single motherhood; Out to Sea (1997), s...
da8f51b5ccec3f80a3cd7acc96ef09fc
https://www.britannica.com/topic/Real-Madrid
Real Madrid
Real Madrid Real Madrid, in full Real Madrid Club de Fútbol, byname Los Blancos (Spanish: “the White”), Spanish professional football (soccer) club based in Madrid. Playing in all-white uniforms, which led to its nickname “Los Blancos,” Real Madrid is one of the world’s best-known teams, with fans in many countries. R...
238a45619efe576fc6b630c73e50182a
https://www.britannica.com/topic/realism-philosophy
Realism
Realism Realism, in philosophy, the viewpoint which accords to things which are known or perceived an existence or nature which is independent of whether anyone is thinking about or perceiving them. The history of Western philosophy is checkered with disputes between those who have defended forms of realism and those ...
d86e2efe348207dd81b5a40f7d0dcadb
https://www.britannica.com/topic/realism-philosophy/Universals
Universals
Universals One of the earliest and most famous realist doctrines is Plato’s theory of Forms, which asserts that things such as “the Beautiful” (or “Beauty”) and “the Just” (or “Justice”) exist over and above the particular beautiful objects and just acts in which they are instantiated and more or less imperfectly exemp...
cffd5ebf1a8d1ca3ed1e771013a671bd
https://www.britannica.com/topic/realism-political-and-social-science
Realism
Realism Realism, set of related theories of international relations that emphasizes the role of the state, national interest, and military power in world politics. Realism has dominated the academic study of international relations since the end of World War II. Realists claim to offer both the most accurate explanati...
6bdfbd39f53d5fa9bb72e2b5ed033059
https://www.britannica.com/topic/Reasonable-Doubt
Reasonable Doubt
Reasonable Doubt …to release his debut album, Reasonable Doubt (1996), which eventually sold more than a million copies in the United States.