| − | '''Thomas Alva Edison''' (February 11, 1847 – October 18, 1931) is considered one of the greatest inventors in [[history]]. Some of his best known inventions are the light bulb, the mimeograph and phonograph. He patented over 1,000 inventions in his lifetime. | + | '''Thomas Alva Edison''' is considered one of the greatest inventors in [[history]]. Some of his best known inventions are the light bulb, the mimeograph and phonograph. He patented over 1,000 inventions in his lifetime. |