Earlier this week the Wikimedia Foundation reached a significant new milestone: on Thursday, March 27, at 00:07 UTC the official article count for all Wikipedias combined reached 10 million. The ten millionth article, a short biography of 16th century English goldsmith and painter Nicholas Hilliard, was created in the Hungarian Wikipedia by user Pataki Márta.

Wikipedia now boasts articles in more than 250 languages, with the English Wikipedia having the largest number, followed in descending order by the German, French, Polish, Japanese, Italian, Dutch, Portuguese, Spanish, and Swedish Wikipedias. The project is also experiencing rapid growth in many young Wikipedias, including Marathi, Tagalog, and Cantonese.

Jimmy Wales, founder of Wikipedia and the Wikimedia Foundation, remarked on the occasion of this milestone, "It's incredible to think that we've grown from one Wikipedia in English to over 250 language Wikipedias. Ten million articles is something we could never have imagined happening so fast when we embarked on Wikipedia in 2001. This is a testament to the incredible dedication of our volunteers around the world."

In December 2007, the German magazine Stern announced in an independent study of 50 articles that the German Wikipedia was more accurate, complete and up-to-date than the longstanding print encyclopedia Brockhaus. In April 2007, a study conducted by the Hewlett Packard Information Dynamics Laboratory found that the best articles on the English Wikipedia are those that have been edited the most frequently, by the largest number of people. It concluded that the correlation between article quality and the number of edits validates Wikipedia as a successful collaborative effort.

Similar studies around the world continue to point to the increasing accuracy and quality of Wikipedia, the free encyclopedia that is written, edited and maintained by a global community of thousands of volunteers.