September 2, 31 BC - Octavius Caesar, the future Emperor Augustus, defeated Mark Antony at the Battle of Actium.
September 2, 1348 - Joan, daughter of Edward III, died of the plague on her way to marry the Infante Pedro of Castile. She was buried in France.
September 2, 1666 - The Great Fire of London began in a baker's shop in Pudding Lane. It rapidly ended up destroying most of London's buildings and houses. This was the end of medieval London (and the end of thatch covered roofs in the city).
September 2, 1752 - The Julian calendar was used in Britain and the Colonies 'officially' for the last time. The following day became 14th September in the Gregorian calendar.
September 2, 1945 - World War II officially ended with the Japanese surrender aboard the USS Missouri in Tokyo Bay.