Most expensive post on X (formerly Twitter) sold at auction

The most expensive tweet sold at auction is a tweet originally posted by Twitter co-founder Jack Dorsey (USA), which sold as a nonfungible token (NFT) for $2,915,835 (£2,101,470 / €2,449,150), on 21 March 2021.

The tweet - which holds the Guinness World Records title of First tweet - was first posted in 21 March 2006 and simply reads "just setting up my twttr". Proceeds of the auction were donated to charity.