On this date in history: In 1812, the United States declared war on Britain, beginning the War of 1812. In 1815, England's Duke of Wellington and Prussian Field Marshal Gebhard von Blucher defeated Napoleon at Waterloo in Belgium. File Photo by Bill Greenblatt/UPI In 1975, Saudi Arabian Prince Museid was publicly beheaded in Riyadh for the assassination of his uncle, King Faisal. In 1979, U.S. President Jimmy Carter and Soviet leader Leonid Brezhnev signed a strategic arms control treaty (SALT