1266–Battle of Benevento: An army led by Charles, Count of Anjou defeats a combined German and Sicilian force led by King Manfred of Sicily. Manfred is killed in the battle and Pope Clement IV makes Charles the King of Sicily and Naples.
1658–Treaty of Roskilde: After defeat in the Northern Wars, King Frederick III of Denmark–Norway is forced to give up nearly a third of territory to Sweden.
1852– The troop transporter Birkenhead of the Royal Navy sinks off South Africa, killing 450 of the 643 people on board. The call Women and children first is believed to have been used for the first time.
1909–Kinemacolor, the first successful color movie process, is first shown to the general public at the Palace Theatre in London.
1914– The ship HMHS Britannic is launched at Harland and Wolff shipyard in Belfast.
1917– Denali National Park is founded in Alaska, originally named Mt. McKinley National Park. The mountain's English–language name comes from US President William McKinley.
1918– A German U–boat sinks the British hospitalship HMHS Glenart Castle, killing 153 people.
1919– The Grand Canyon becomes part of the Grand Canyon National Park.
1993–World Trade Center bombing: A bomb explodes in a car park under the North Tower of New York City's World Trade Center, killing 6 people, and injuring over 1,000.