Thomas Edison
Thomas Alva Edison was an American inventor, scientist and businessman, famous for inventing devices such as the phonograph, motion picture camera and the light bulb.
In the Assassin's Creed Universe, Edison was an employee of Abstergo Industries and therefore a Templar. In the game's universe, Edison did not create the inventions himself, but Abstergo did, who let Edison take all the credit and reward for it.
Edison used his influence to discredit Nikola Tesla, an ally of the Assassins who had come into possession of Piece of Eden 4. Tesla had planned to set up a worldwide electrical grid with free power for all based on his discoveries from PE4. As this would have affected Abstergo's plans for worldwide control, Edison began a smear campaign against Tesla's use of alternating current, inventing the electric chair and having an elephant filmed being electrocuted to promote public resistance to Tesla. He may have also used PE4, which was taken from Tesla