Events
- 1758 – Mary Campbell is abducted from her home in Pennsylvania by Lenape during the French and Indian War.
- 1856 – Lawrence, Kansas is captured and burned by pro–slavery forces.
- 1863 – American Civil War: Siege of Port Hudson – Union forces begin to lay siege to the Confederate–controlled Port Hudson, Louisiana.
- 1881 – The American Red Cross is established by Clara Barton.
- 1917 – Great Atlanta fire of 1917.
- 1924 – University of Chicago students Richard Loeb and Nathan Leopold, Jr. murder 14–year–old Bobby Franks in a "thrill killing."
- 1927 – Charles Lindbergh touches down at Le Bourget Field in Paris, completing the world's first solo nonstop flight across the Atlantic Ocean.
- 1932 – Amelia Earhart, because of bad weather, lands in a pasture in Derry, Northern Ireland, becoming the first woman to fly solo across the Atlantic Ocean.
- 1934 – Oskaloosa, Iowa, becomes the first municipality in the United States to fingerprint each of its citizens.
- 1941 – World War II: 950 miles off the coast of Brazil, the freighter SS Robin Moor becomes the first United States ship sunk by a German U-boat.
- 1945 – United States screen legend Humphrey Bogart marries actress Lauren Bacall.
- 1951 – opening of the Ninth Street Show otherwise known as the 9th Street Art Exhibition was a gathering of a number of notable artists, and it was the stepping–out of the post war New York avant-garde, collectively known as the New York School.
- 1956 – Nuclear testing: Shot Redwing–Cherokee is successfully detonated at Bikini Atoll at the Pacific Proving Grounds in the Marshall Islands. With a yield of 3.8 megatons, it is the first aircraft deliverable hydrogen bomb tested by the United States.
- 1961 – American civil rights movement: Alabama Governor John Malcolm Patterson declares martial law in an attempt to restore order after race riots break out.
- 1979 – White Night riots in San Francisco following the manslaughter conviction of Dan White for the assassinations of George Moscone and Harvey Milk.
- 1998 – In Miami, Florida, five abortion clinics are hit by a butyric acid attacker.