Inventors' Day in United States
Inventors' Day in United States is held on February 11. This event in the second decade of the month February is annual.
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Thomas Edison, in full Thomas Alva Edison, (born February 11, 1847, Milan, Ohio, U.S.—died October 18, 1931, West Orange, New Jersey), American inventor who, singly or jointly, held a world-record 1,093 patents. In addition, he created the world’s first industrial research laboratory.
His inventions included the phonograph, the carbon-button transmitter for the telephone speaker and microphone, the incandescent lamp, the first commercial electric light and power system, an experimental electric railroad, and key elements of motion-picture equipment.