- 1520 The Spaniards are expelled from Tenochtitlan.
- 1860 Famous debate on Charles Darwin's theory of evolution held at the Oxford University Museum and dominated by arguments between Thomas Henry Huxley and Bishop Samuel Wilberforce
- 1905 In Russia, the "Potemkin" arrives at Odessa, where sailors take the bodies of dead crewman ashore; sailors join civilians in revolutionary actions of the '1905 Revolution'
- 1908 Tunguska Event: a giant fireball most likely caused by the air burst of a large meteoroid or comet impacts in Siberia
- 1934 "Night of Long Knives" - Hitler stages a bloody purge of the Nazi party
- 1938 Superman 1st appears in DC Comics' Action Comics Series issue #1
- 1992 South African ANC President Nelson Mandela meets with UN Secretary-General Boutros Boutros-Ghali at Dakar
Winton Motor Carriage Company publishes the first known automobile ad in Scientific American using the headline “dispense with a horse.”
On June 30, 1898