1514 – Pope Leo X issues a papal bull against slavery.
1639 – The “Fundamental Orders,” the first written constitution that created a government, is adopted in Connecticut.
1784 – American Revolutionary War: Ratification Day, United States Congress ratifies Treaty of Paris with Great Britain.
1858 – Napoleon III of France escapes an assassination attempt.
1972 – Queen Margrethe II of Denmark ascends the throne, the first Queen of Denmark since 1412 and the first Danish monarch not named Frederick or Christian since 1513.