1520: France and England sign treaty of Scotland.
1716: First slaves arrive in Louisiana.
1744: France and Prussia sign peace treaty.
1813: US invasion of Canada halted at Stoney Creek, ON.
1844: Young Men's Christian Association (YMCA) forms in London.
1882: The electric iron is patented by Henry W Seely in New York City.
1912: The eruption of Novarupta in Alaska begins. It is the second largest volcanic eruption of the 20th century.
1925: Walter Chrysler founds automobile manufacturer Chrysler Corporation.
1933: First drive-in theater opens (Camden, NJ).
1934: Securities and Exchange Commission established.
1942: Japanese forces retreat, ending Battle of Midway.
1944: Operation Neptune, D-Day: 150,000 Allied Expeditionary Force lands in Normandy, France.
1955: Bill Haley and the Comets' "Rock Around the Clock" hits #1.
1966: NFL and AFL announce their merger.
1968: Senator Robert F. Kennedy dies from his wounds after he was shot the previous night.
1971: Ed Sullivan Show last broadcasts on CBS.
1977: Washington Post reports US has developed neutron bomb.
1991: NBC announces Jay Leno will succeed Johnny Carson on May 25, 1992.