Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

2 days ago · On Jan. 15, 2001, the earliest edit found on Wikipedia’s homepage announced, “This is the new WikiPedia!” Twenty-five years later, Wikipedia remains a key source of knowledge on the …

15 hours ago · Wikipedia turned 25 years old today. Now, its audience is increasingly all the massive big tech AI answer engines around the world, rather than humans.

1 day ago · New video docuseries celebrates the humans who make knowledge on Wikipedia possible; new tech partnerships highlight Wikipedia's value in age of AI.

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:

Founded by Jimmy Wales and Larry Sanger in 2001, Wikipedia has been hosted since 2003 by the Wikimedia Foundation, an American nonprofit organization funded mainly by donations from readers. …

The English Wikipedia is the primary [a] English-language edition of Wikipedia, an online encyclopedia. It was created by Jimmy Wales and Larry Sanger on January 15, 2001, as Wikipedia's first edition.

The two slashes // may indicate: a comment marker in several programming languages including C, C++, JavaScript and Java the root directory path in Domain/OS the operator for integer division, in …

Search the 278,811 articles in the Simple English Wikipedia How to write Simple English pages · Useful pages · Simple talk · Categories · Help Schools Gateway (for users who want to make changes from …

The English-language Wikipedia is celebrating its 25th birthday! Learn how you can take part in the encyclopedia's continued improvement.