Wikidata Free knowledge base Wikiversity Free learning resources Wikiquote Free quote compendium MediaWiki Free & open wiki software Wikisource Free content library …

Dec 7, 2025 · Wikipedia is a free Internet-based encyclopedia, started in 2001, that operates under an open-source management style.

Welcome! The Wikimedia movement is a global community of people, projects, and activities working together to create and share knowledge freely. Join us in making all knowledge …

In 2003, economics PhD student Andrea Ciffolilli argued that the low transaction costs of participating in a wiki created a catalyst for collaborative development, and that features such …

We support protect fund openhuman knowledge We are the nonprofit that hosts Wikipedia. We support the people, technology, and policies that enable reliable information to be shared with …

Nov 17, 2025 · wiki, website that can be modified or contributed to by users. Wikis can be dated to 1995, when American computer programmer Ward Cunningham created a new …

6 days ago · The English Wikipedia, also abbreviated as en-WP, or simply enwiki, is the English-language version of Wikipedia. It is the original Wikipedia, and although the project has since …

"A wiki invites all users—not just experts—to edit any page or to create new pages within the wiki website, using only a standard 'plain-vanilla' Web browser without any extra add-ons."

Wikipedia's name is a combination of two words, wiki and encyclopedia.[3] Wikipedia was started on January 9, 2001, by Jimmy Wales and Larry Sanger as part of an earlier online …

Wikipedia's main page (20 December 2001) Wikipedia, a free-content online encyclopedia written and maintained by a community of volunteers known as Wikipedians, began with its first edit …