In November 2009, Twitter began rolling out the ability to 'retweet' a tweet. Prior to this, people would write "RT @username" before quoting the original tweet. Some people limited their 140 character limit down further, so that other people could always fit their entire tweet in a proto-retweet.[1] In 2023, with the rebranding of Twitter to X, retweets were quietly renamed to reposts, but retweets are still the commonly used term.