The inventor of the light bulb, phonograph, and motion picture, Thomas Edison was granted 400 patents from 1879 to 1886. Though he changed technology forever, not all of his inventions were successful.
Discover how Nikola Tesla invented alternating current and later the Tesla Coil. Learn about his adversarial relationship with previous employer Thomas Edison and his partnership with George Westinghouse before his tragic death.
Discover Thomas Jefferson's contributions to the movement for American independence and the impact of his pioneering political career. Learn about his relationships with his wife Martha and slave Sally Hemings.