Live übertragen am 09.02.2017. This talk introduces the Wikimedia Movement's latest major wiki project: Wikidata. It covers what Wikidata is (00:00), how to contribute new data to Wikidata (1:09:34), how to create an entirely new item on Wikidata (1:27:07), how to embed data from Wikidata into pages on other wikis (1:52:54), tools like the Wikidata Game (1:39:20), Article Placeholder (2:01:01), Reasonator (2:54:15) and Mix-and-match (2:57:05), and how to query Wikidata (including SPARQL examples) (starting 2:05:05).