 In 1877, Thomas Edison invented the phonograph, a device allowing sound to be recorded and reproduced on a rotating cylinder with a stylus (or "needle") attached to a diaphragm mounted at the narrow end of a horn. Emile Berliner invented the familiar lateral-cut disc phonograph record in 1888. His design overtook the Edison phonograph in the 1920s, partly because Berliner's patent expired in 1918, leaving others free to use his invention.
