1787 – The U.S. Constitution was signed by a majority of the 55 delegates to the Constitutional Convention in Philadelphia.
1862 – Union forces led by Gen. George McClellan attacked Confederate troops led by Gen. Robert E. Lee near Antietam Creek in Maryland. McClelland halted the northward drive of the Confederate army. The battle was the bloodiest day in American military history.
1939 – Soviet troops invaded Poland, 16 days after Nazi Germany moved into the country.
1972 – The TV comedy M*A*S*H debuts on CBS.
1978 – Egyptian President Anwar Sadat and Israeli Prime Minister Menachem Begin signed the Camp David Accords.
2001 – President George W. Bush said Osama bin Laden, the ringleader in the Sept. 11 terrorist attacks, was “wanted dead or alive.”
