Translations:Differences between Wikipedia, Wikimedia, MediaWiki, and wiki/21/en

Wikipedia is a Wikimedia project that is a global, free and multilingual internet encyclopedia. It is the oldest, and largest, Wikimedia project, predating the Wikimedia Foundation itself. Wikipedia is often described as a wiki, but it is in fact a collection of over 200 wikis, one for each language, all running on the MediaWiki software.