The US Library of Congress, home to the Declaration of Independence, will archive every tweet since 2006.
The news itself came in less than 140 characters: "Library to acquire ENTIRE Twitter archive - ALL public tweets, ever, since March 2006! Details to follow."
The decision is an ambitious one, as the micro-blogging site has 150 million users, and continues to tack on another 300,000 every day.
A post on the Library's Facebook page said: "So if you think the Library of Congress is 'just books,' think of this: The Library has been collecting materials from the web since it began harvesting congressional and presidential campaign websites in 2000. Today we hold more than 167 terabytes of web-based information, including legal blogs, websites of candidates for national office, and websites of Members of Congress."
"In other words, if you want a place where important historical information in digital form should be preserved for the long haul, we're it!"