The Ancient Greeks have been trying to amplify sound until their fall, but Charles Wheatstone invented a concept of a microphone in 1827. Later, Thomas Edison invented the microphone. William Burt invented the typewriter. It was not a success, but a company called Sholes & Glidden made a typewriter that was successful . Charles Barbier made a system of reading and writing in the 1800s, but Louis Braille made it easier. The Braille writing system is a way for blind people to write. He made books and told his students about his system. Bart thimonnier hears some pics anyway Bart Thimonnier made the sewing machine in 1829. The sewing machine makes homemade clothes and pillows.
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