Sound On! 📢 #OnThisDayInHistory, #ThomasEdison made his first recording on the phonograph of him reciting “Mary Had a Little Lamb.” He recounted in his journals: “I told him I was going to record talking, and then have the machine talk back. He thought it absurd. However, it was finished, the foil was put on; I then shouted ‘Mary had a little lamb,’ etc. I adjusted the reproducer, and the machine reproduced it perfectly. I was never so taken aback in my life. Everybody was astonished. I was alw