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1877
Apr 18
| 1877 • Thomas Edison announces his invention of the phonograph, a machine that can record sound, considered Edison's first great invention. Edison demonstrates the device for the first time on November 29. |
1880
Age: 2y
| 1880 • The SS Columbia, which will be the first outside usage of Thomas Edison's incandescent light bulb, is launched at the Delaware River Iron Shipbuilding and Engine Works of John Roach and Sons in Chester, Pennsylvania. |
1971
Feb 10
Age: 93y
| 1971 • International Telecommunications Satellite Organization (Intelsat) (effective 12 February 1973). |