Sept. 26 (UPI) -- On this date in history: In 1777, British troops occupied Philadelphia. In 1934, Britain's Queen Mary bestowed her name on Cunard-White Star Line's newest ocean liner in a christening ceremony in Scotland. In 1950, U.N. troops took the South Korean capital of Seoul from North Korean forces. In 1960, the first televised presidential debate aired from a Chicago TV studio. It featured candidates John F. Kennedy and Richard M. Nixon. In 1983, the yacht Australia II won the America'