Wikipedia is a free multilingual open-source wiki-based online encyclopedia edited and maintained by a community of volunteer editors, started on 15 January 2001 as an English-language encyclopedia.
[3] As of February 2025, Wikipedia articles have been created in 354 editions, with 341 currently active and 13 closed.
[4] The Meta-Wiki language committee manages policies on creating new Wikimedia projects.
[11][12] And rather than relying on transliteration, Belarusian has separate Wikipedia projects for the official Narkamaŭka and Taraškievica orthographies.
The table below lists the active language editions of Wikipedia roughly sorted by the number of active users (registered users who have made at least one edit in the last thirty days).