Hawaii recorded its hottest day ever at 100°F.
Source
NASA launched the Explorer 11 satellite atop a Juno II rocket from Cape Canaveral, Florida.
The Airbus A380 passenger airliner successfully underwent its maiden flight.
Heinrich Himmler ordered the construction of the Auschwitz Concentration Camp.
Witold Pilecki escaped Auschwitz.
John Hinckley Jr., President Reagan's failed assassin, pleaded 'not guilty' due to not being mentally sound at trial.