James Watt - INVENTOR OF THE STEAM ENGINE By Lucas Harvey Jan 19, 1736 James Watt is born Jan 1, 1754 Watt gets the idea Mar 5, 1763 Starting to develop the engine Feb 23, 1764 Given a Newcomen Engine to repair Feb 23, 1769 First patent Jan 1, 1775 Watt forms partnerships Feb 23, 1784 James Watt releases his steam engine Jan 23, 1800 James Watt retires Jan 1, 1819 The "watt" Aug 19, 1819 James Watt dies