On April 14, Twitter announced it is donating its digital archive of public tweets to the Library of Congress. Twitter is a social networking service that enables users to send and receive tweets, which consist of web messages of up to 140 characters. Twitter processes more than 50 million tweets per day from people around the world. The Library will receive all public tweets-which number in the billions-from the 2006 inception of the service to the present.

The announcement came on the same day the Library’s own Twitter feed (@librarycongress) crossed 50,000 followers.