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Welcome! Wikidata is a free linked database that can be read and edited by both humans and machines. Wikidata acts as central storage for the structured data of its Wikimedia sister projects including Wikipedia, Wikivoyage, Wikisource, and others. Wikidata also will provide support to many other sites and services beyond just Wikimedia projects! The content of Wikidata is available under a free license, exported using standard formats, and can be interlinked to other open datasets on the linked data web. Get involved Explore the project: Learn all about Wikidata and how it works Check out a showcase item for author Douglas Adams Browse the Frequently Asked Questions Understand how to navigate the site Find help and relevant documentation Start contributing: Find out how you can contribute Take an interactive tutorial and make your first edits Improve a random item Organize or attend an event Go behind the scenes: Drop by the Community portal Say hello or ask a question on the Project chat Join a WikiProject to start working with others on a specific task or topic Collaborate: Plan and coordinate deployment of data on Wikisource, Wikipedia, and other sister projects News The Wikidata Query Service Days 2026 is coming soon! October 17 to 23. This online event will focus on the migration of the Wikidata Query Service from Blazegraph to QLever, and supporting the Wikidata community, tool maintainers and data reusers with adapting their queries and tools to the new endpoint. 🗓️ Session program is out now, and is designed to repeat sessions for different timezones, ensuring we reach as many Wikimedians as possible. 🔗 Register for news, updates and most importantly, access links to the conferencing software. 🗣️ Please share this event with anyone you know who makes use of SPARQL, the Wikidata Query Service or Wikidata lists, as there is a very high chance they will be affected! 2026-10-07: The Wikidata development team held the Q4 Wikidata+Wikibase office hour for 2026. They presented their work from the past quarter and discussed what's coming next. Session log is available. More news... (edit [in English])

Learn about data New to the wonderful world of data? Develop and improve your data literacy through content designed to get you up to speed and feeling comfortable with the fundamentals in no time. item: Earth property: highest point value: Mount Everest Discover Innovative applications and contributions from the Wikidata community Featured tool: Wikidata tempo-spatial display by User:Magnus Manske. Explore the intersection of time and space by plotting Wikidata content on a timeline and map Wikidata tempo-spatial display More: Check out Wikidata:Tools for some of our best tools and gadgets for using and exploring Wikidata. Browse our press clippings and collection of published research about Wikidata Know of an interesting project or research conducted using Wikidata? You can nominate content to be featured on the Main page here! Keep up-to-date with Wikidata Project discussion Contact Weekly summaries Wikidata mailing list Wikidata technical mailing list Leave a message at project chat Chat on IRCconnect Contact the developers Twitter • Facebook • Google+ • Quora • identi.ca

Sister projects  Wikipedia – Encyclopedia     Wiktionary – Dictionary and thesaurus     Wikibooks – Textbooks, manuals, and cookbooks     Wikiquote – Collection of quotations     Wikisource – Library     Wikiversity – Learning resources     Wikivoyage – Travel guides    Wikispecies – Directory of species    Wikifunctions – Free software functions     Wikimedia Commons – Media repository     Wikimedia Incubator – New language versions     Meta-Wiki – Wikimedia project coordination     MediaWiki – Software documentation