There's a whole book, "Hatching Twitter" about the sordid founding of Twitter and how Dorsey and Noah Glass were the main originators of the concept at oOdeo, t

There's a whole book, "Hatching Twitter" about the sordid founding of Twitter and how Dorsey and Noah Glass were the main originators of the concept at oOdeo, then Ev eventually fired them and removed them from the history. Only to have Dorsey come back later and remove him. Seems like a bunch of people had a hand in creating it in various ways.