What is Wikipedia
A collaboratively edited, multilingual, free
Internet encyclopedia supported by the
non-profit Wikimedia Foundation.
Launched on: January 15, 2001
Founder: Jimmy Wales and Larry Sanger.
Sanger coined the name Wikipedia, which is a portmanteau of wiki (a type of collaborative website, from the Hawaiian word wiki, meaning "quick") and encyclopedia.
Its 25 million articles, over 4.1 million in the English Wikipedia alone, are written collaboratively by volunteers around the world. Almost all of its articles can be edited by anyone with access to the site, and it has about 100,000 active contributors.
As of March 2013, there are editions of Wikipedia in 285 languages. It has become the largest and most popular general reference work on the Internet, ranking sixth globally among all websites on Alexa and having an estimated 365 million readers worldwide.
Anyone could start an article as long as the topic was deemed encyclopedic by the existing editor community. With the exception of some protected articles, anyone could contribute to any article by adding new content, editing existing content, or deleting superfluous content.