Thomas Alva Edison
Thomas Alva Edison was an American inventor (February 11th, 1847 - October 18th, 1931) who invented the...
George Washington Carver was an American in nationality. He was loyal entire his life for exploring the developments linked mainly to the...
Herman Hollerith was a German-American statistician who lived from February 29, 1860 until November 17, 1929. The founder of IBM, Hollerith...
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