Wikipedia

Wikipedia is the world's free knowledge resource. It is a collaborative creation that has been added to and edited by millions of people from around the globe since it was created in 2001: everyone can edit it, at any time. Wikipedia is offered in more than 300 languages containing a total of more than 55 million articles. It is the largest, collaborative collection of free knowledge in human history, and today its content is contributed and edited by a community of more than 280,000 volunteer editors each month.