Ajit Pai @AjitPai
On this date in 1860, Édouard-Léon Scott de Martinville made the first sound recording in history. 20 years before Edison’s phonograph, his "phonautograph" recorded ambient sounds onto paper rotating on a cylinder. Incredibly, you can listen to it here: https://t.co/yxKoqs1cNc — PolitiTweet.org