[Twitter's First Tweet Celebrates 20th Anniversary, Its NFT Sold for Approximately $2.9 Million in 2021] Deep Tide TechFlow reports: On March 22, according to cnBeta, on March 21, 2006, Twitter co-founder Jack Dorsey posted the platform's first tweet, 'just setting up my twttr,' marking its 20th anniversary. The tweet has been archived by the Computer History Museum and recognized as a standalone entry by Guinness World Records. Its NFT version was sold for approximately $2.9 million in 2021, further solidifying its status as an artifact of internet history. Since then, Twitter has undergone multiple major transformations: after Elon Musk's acquisition, it was renamed X, which was subsequently integrated into xAI, and xAI later became part of SpaceX. Currently, X maintains significant influence among core user groups in the tech industry but faces competitive pressure from Bluesky and Meta's Threads.