1781 – American Revolutionary War: General Benedict Arnold led British forces to victory in the Battle of Groton Heights.
1916 – The first self-service grocery store, Piggly Wiggly (pictured), was founded in Memphis, Tennessee, U.S.
1944 – World War II: Soviet forces captured the city of Tartu on their way to re-establishing their rule in Estonia.
1970 – The Popular Front for the Liberation of Palestine hijacked four jet aircraft, landing two of them at Dawson's Field in Zarqa, Jordan, and one in Beirut, with the last hijacking attempt foiled.
1997 – An estimated 2.5 billion people worldwide watched the funeral of Diana, Princess of Wales on television.