News release: "In April, 2010, the Library of Congress and Twitter signed an agreement providing the Library the public tweets from the company’s inception through the date of the agreement, an archive of tweets from 2006 through April, 2010. Additionally, the Library and Twitter agreed that Twitter would provide all public tweets on an ongoing basis under the same terms. The Library’s first objectives were to acquire and preserve the 2006-10 archive; to establish a secure, sustainable process for receiving and preserving a daily, ongoing stream of tweets through the present day; and to create a structure for organizing the entire archive by date. This month, all those objectives will be completed. To date, the Library has an archive of approximately 170 billion tweets."