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person on the planet is given free access to the sum of all human knowledge.
That's what we're doing." — Jimmy Wales Wikipedia is a free online
encyclopedia that anyone can edit, and millions already have . Wikipedia's
purpose is to benefit readers by presenting information on all branches of
knowledge . Hosted by the Wikimedia Foundation , it consists of freely
editable content, whose articles also have numerous links to guide readers to
more information. Written collaboratively by largely anonymous volunteers,
known as Wikipedians , Wikipedia articles can be edited by anyone with
Internet access (and who is not presently blocked ), except in limited cases
where editing is restricted to prevent disruption or vandalism . Since its
creation on January 15, 2001 , it has grown into the world's largest reference
website , attracting over a billion visitors monthly . Wikipedia currently has
more than sixty-two million articles in more than 300 languages , including
6,763,007 articles in English , with 118,083 active contributors in the past
month. Wikipedia's fundamental principles are summarized in its five pillars .
The Wikipedia community has developed many policies and guidelines , although
editors do not need to be familiar with them before contributing. Anyone can
edit Wikipedia's text, references, and images. What is written is more
important than who writes it. The content must conform with Wikipedia's
policies , including being verifiable by published sources . Editors' opinions
, beliefs, personal experiences, unreviewed research , libelous material, and
copyright violations will not remain. Wikipedia's software allows easy
reversal of errors, and experienced editors watch and patrol bad edits.
Wikipedia differs from printed references in important ways . It is
continually created and updated, and encyclopedic articles on new events
appear within minutes rather than months or years. Because anyone can improve
Wikipedia, it has become more comprehensive than any other encyclopedia. Its
contributors enhance the quality and quantity of the articles and remove
misinformation, errors, and vandalism . Any reader can fix a mistake or add
more information to articles (see Researching with Wikipedia ). Begin by
simply clicking the [edit] or [edit source] buttons or the pencil icon at the
top of any non-protected page or section. Wikipedia has tested the wisdom of
the crowd since 2001 and found that it succeeds. v t e Basic information on
Wikipedia Help directory menu Teahouse (interactive help for new editors)
About Wikipedia Readers' index to Wikipedia Statistics Administration FAQs
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disclaimer Readers' FAQ Student help Navigation Searching Viewing media Help
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ropes Common mistakes Newcomer primer Simplified ruleset The "Missing Manual"
Your first article Wizard Young Wikipedians The Wikipedia Adventure Accounts
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VisualEditor User guide Pillars, policies and guidelines Five pillars Manual
of Style Simplified Etiquette Expectations Oversight Principles Ignore all
rules The rules are principles Core content policies Policies and guidelines
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desk Reference Desk Category Requests for help Disputes resolution requests
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wikimedia misc Newsletters : Signpost Library Newsletter GLAM Newsletter
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sources Referencing Citations Citation Style 1 Citation templates Footnotes
Page numbers Cite errors How-to guides Category Tools Infoboxes Writing
articles Development Better writing Files Images Media files Uploading
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Merging Renaming Requests Redirecting Reverting Vandalism cleanup Talk pages
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Linking Directories and glossaries Category Abbreviations Contents Edit
summaries Essays Glossary Index Shortcuts Tips v t e Wikipedia articles
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checking Citation needed Vandalism Community (Wikipedians) Administrators
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Pride Science People ( list ) Esra'a Al Shafei Florence Devouard Sue Gardner
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Maher Magnus Manske Ira Brad Matetsky Erik Möller Jason Moore Raju Narisetti
Steven Pruitt Annie Rauwerda Larry Sanger María Sefidari Lisa Seitz-Gruwell
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Wikipedia posts VisualEditor #1Lib1Ref 2021 Wikimedia Foundation actions on
the Chinese Wikipedia Controversies Essjay controversy Henryk Batuta hoax
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debate United States congressional staff edits Zhemao hoaxes Coverage American
politics Donald Trump COVID-19 pandemic Death Israeli–Palestinian conflict
2023 Israel-Palestine war Russian invasion of Ukraine Honors 274301 Wikipedia
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from "
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protected project pages This page was last edited on 14 December 2023, at
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