March 21, 2023 all-day
Mar 21, 2006. Jack Dorsey sent the first “tweet”—“ just setting up my twttr”— in the now immensely popular microblogging and social networking platform. Twitter enables users to post 140-character public messages. Dorsey, Evan Williams and Biz Stone of Odeo launched Twitter to the public on July 15, 2006.