Wikipedia:About
Wikipedia is a free-content encyclopedia, written collaboratively by people from all around the world. The site is a wiki, which means that anyone can edit articles simply by clicking on the edit this page link.
Wikipedia is a trademark of the Wikimedia Foundation, Inc.
For help topics, questions and contact information, see Help:Contents.
Wikipedia History
Wikipedia Statistics
There are 13,000 active contributors working on over 1,800,000 articles in more than 100 languages. As of today, there are 6,911,275 articles in English; every day hundreds of thousands of visitors from around the world make tens of thousands of edits and create thousands of new articles to enhance the amount of knowledge held by the Wikipedia encyclopedia. Visitors do not need any special qualifications to contribute, and people of all ages help to write Wikipedia articles.
Exploring Wikipedia
Very much
Contributing to Wikipedia
Anyone can contribute to by clicking on the Edit this page tab in an article. Before starting to contribute however, you should check out some handy helping tools such as the tutorial and the policies and guidelines, as well as our welcome page.
Behind Wikipedia
Wikipedia uses the MediaWiki software. It's an open-source program that is used on all WikiMedia projects.
The hardware supporting the various projects is based on almost 100 servers hosted in various hosting centers around the world. Full descriptions of the various servers are available on this meta page.
For technical information about Wikipedia you can check out the Technical FAQ.
How to contact project members
If you require more information, the first place to go is the Help:Contents. To contact individual contributors, you should leave them a message on their talk page. Standard places to ask policy and project-related questions are the village pump, online, and the Wikipedia mailing lists, over email. You can also reach other Wikipedians via IRC and instant messenger.
There is also a meta-Wikipedia, a site for coordinating the various Wikipedia projects (and abstract discussions of policy and direction), and there are many different places for submitting bug reports and feature requests.
For a full list of contact options, see: Wikipedia:Contact us.
Opinions and objections
Many people love to explore or contribute to Wikipedia. There are articles on the strengths of Wikipedia, replies to common objections and others.
Versions found in other languages
This Wikipedia is written in English. Many other Wikipedias are available; some of the largest are listed below.
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1,000,000+ articles
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250,000+ articles
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50,000+ articles
Sister projects
Wikipedia is written by volunteer editors and hosted by the Wikimedia Foundation, a non-profit organization that also hosts a range of other volunteer projects:
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Commons
Free media repository -
MediaWiki
Wiki software development -
Meta-Wiki
Wikimedia project coordination -
Wikibooks
Free textbooks and manuals -
Wikidata
Free knowledge base -
Wikinews
Free-content news -
Wikiquote
Collection of quotations -
Wikisource
Free-content library -
Wikispecies
Directory of species -
Wikiversity
Free learning tools -
Wikivoyage
Free travel guide -
Wiktionary
Dictionary and thesaurus
See also Wikipedia:Paper edition