Born on January 15
Wikipedia Day
The encyclopedia anyone can edit.
Next: January 15, 2027
Where it comes from
Wikipedia went online on 15 January 2001, and the day is kept as its birthday by the Wikimedia Foundation and its volunteers. It began as a side project of Nupedia, a free online encyclopedia founded by Jimmy Wales with Larry Sanger as editor-in-chief, which had finished fewer than two dozen articles because every…
How it's celebrated
Wikipedia's volunteer communities hold birthday events in person around the world, and the Wikimedia Foundation marks the day online. It is a good day to fix a typo, add a source to an article about your hometown, or thank the volunteers who write, edit and fact-check every page without pay.
Did you know
Wikipedia is the only website among the ten most visited in the world that is run by a non-profit.
Read the full story of Wikipedia Day
Star sign
Capricorn · December 22 – January 19 · Earth sign
Patient and ambitious, climbing steadily to the top.