Wikidata was launched on October 29, 2012, so it is celebrating its tenth birthday today. In that time, geeks have uploaded nearly 500 million entries. They’re improving the reliability of Wikipedia, and although you may not know it, you’re drawing from Wikidata every day. Let’s take a closer look at ten years of the collective efforts of Wikidatists. We wrote a blog post for Wikidata’s birthday (Czech only).