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  1. Wikipedia, the free encyclopedia

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

  2. Wikipedia

    You deserve an explanation, so please don't skip this 1-minute read. It's Tuesday, December 30. Our fundraiser will soon be over, but fewer people are seeing our message this December and …

  3. Wikipedia | Definition, Encyclopedia, History, & Facts ...

    Dec 7, 2025 · Wikipedia uses collaborative software known as a wiki that facilitates the creation and development of articles. Although some highly publicized problems have called attention …

  4. English Wikipedia - Meta-Wiki

    Nov 6, 2025 · 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 …

  5. Wikipedia – Wikimedia Foundation

    Wikipedia started with an impossible idea: to build a free encyclopedia for and by the world. Almost two decades later, we’ve made some serious progress. Nearly 300 languages, more …

  6. Wiki Experts Inc - Wikimedia

    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 …

  7. Wiki | Definition & Facts | Britannica

    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 …