American public official, writer, scientist, and printer. After the success of his Poor Richard's Almanac (1732-1757), he entered politics and played a major part in the American Revolution. Franklin negotiated French support for the colonists, signed the Treaty of Paris (1783), and helped draft the Constitution (1787-1789). His numerous scientific and practical innovations include the lightning rod, bifocal spectacles, and a stove. He is also noted to have found an early version of the postal service.