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Definition: Wikidata

A user-generated knowledge base that was launched in 2012 by the German chapter of the Wikimedia Foundation. Document oriented, each item in Wikidata is prefixed with a Q and a number. In 2015, Google's Freebase knowledge base was added to Wikidata. Wikidata is more structured than Wikipedia, and Wikipedia uses the data in Wikidata for its mobile views and info boxes. See Freebase, Wikipedia, Wikimedia, knowledge base and Semantic Web.