|Thomas Alva Edison
Birthday: 1847, Milan, Ohio, USA
Thomas Alva Edison had little formal education and during the
Civil War was a telegraph operator. Later, he invented the gramophone, a
long-lasting carbon-thread electric lamp, and the nickel cadmium accumulator.
His 1,097 patented inventions were the result of hard work, trial and error. His
inventions were said by the US Congress to have revolutionized