August 31

• August 31, 1422
  Henry V, King of England and France, dies
• August 31, 1707
  The Treaty of Altranstädt, which settle the rights of Protestants in Silesia, is signed between Charles XII of Sweden and Joseph I, Holy Roman Emperor
• August 31, 1756
  The British at Fort William Henry, New England, surrender to Louis-Joseph de Montcalm of France
• August 31, 1907
  England, Russia and France form the Triple Entente as a counterweight to the Triple Alliance of Germany, Austria-Hungary and the Kingdom of Italy
• August 31, 1946
  At the Nuremberg Tribunal, defendants make closing statements before the court: Hermann Goring denies all, Joachim von Ribbentrop hopes America and Great Britain are more successful versus Bolshevism
• August 31, 1957
  Malaysia gains independence from Britain
• August 31, 1962
  Trinidad and Tobago gain independence from Britain
• August 31, 1991
  Kyrgyzstan and Uzbekistan declare independence from the Soviet Union
• August 31, 1997
  Diana, Princess of Wales, is pronounced dead at 4:00 a.m. after a car crash at midnight in the Pont de l'Alma road tunnel in Paris