How healthy you are
Wikidata is a document-oriented database, focusing on items, which represent any kind of topic, concept, or object. Each item is allocated a unique persistent identifier called its QID, a positive integer prefixed with the upper-case letter "Q"[b]. This makes it possible to provide translations of the basic information describing the topic each item covers without favoring any particular photos
Wikidata was launched on 29 October 2012 and was the first new project of the Wikimedia Foundation since 2006.[2][33][34] At release, only the centralization of language links was available. This enabled items to be created and filled with basic information: a label – a name or title, aliases – alternative terms for the label, a description, and links to articles about the topic in all the various language editions of Wikipedia (interwikipedia links). Historically, a Wikipedia article would include a list of interlanguage links (links to articles on the same topic in other editions of Wikipedia, if they existed). Wikidata was originally a self-contained repository of interlanguage links.[35] Wikipedia language editions were still not able to access Wikidata, so they needed to continue to maintain their own lists of interlanguage links.[citation needed]On 14 January 2013, the Hungarian Wikipedia became the first to enable the provision of interlanguage links via Wikidata.[36] This functionality was extended to the Hebrew and Italian Wikipedias on 30 January, to the English Wikipedia on 13 February and to all other Wikipedias on 6 March.[37][38][39][40] After no consensus was reached over a proposal to restrict the removal of language links from the English Wikipedia,[41] they were automatically removed by bots. On 23 September 2013, interlanguage links went live on Wikimedia Commons.[42]
