The American inventor announces his invention of the phonograph, a way to record and play back sound.
Edison stumbled on one of his great inventions--the phonograph--while working on a way to record telephone communication at his laboratory in Menlo Park, New Jersey. His work led him to experiment with a stylus on a tinfoil cylinder, which, to his surprise, played back the short song he had recorded, "MARY HAD A LITTLE LAMB". Public demonstrations of the phonograph made the Yankee inventor world famous, and he was dubbed the "Wizard of Menlo Park."
During the 1920s, the early record business suffered with the growth of radio, and in 1929 recording production at Edison ceased forever. Edison, who acquired an astounding 1,093 patents in his 84 years, died in 1931.
taken from: http://www.history.com/this-day-in-history/edisons-first-great-invention [21.11.2012]