Franklin Mint – History of the US – Fulton’s “Clermont” Proves Successful – 1807 – 45mm – Proof Bronze Medal. June 22 – British man-of-war “Leopard” fires upon the U.S. frigate “Chesapeake;” Aug. 17-19 – Robert Fulton’s “Clermont,” first successful steamboat, makes trip from New York to Albany; Sept. 1 – Aaron Burr acquitted in treason trial; Dec. 22 – Embargo Act signed by President Jefferson.