1941
Attack on Pearl Harbor
The Imperial Japanese Navy launched a surprise military strike against the United States naval base at Pearl Harbor, Hawaii. This event led to the United States' formal entry into World War II the following day.
📅
All Events
1972
Apollo 17 Final Moon Launch
NASA launched the Apollo 17 mission, the final crewed lunar landing mission of the Apollo program. It was the last time humans traveled beyond low Earth orbit and the last crewed launch of a Saturn V rocket.
1787
Delaware Ratifies the U.S. Constitution
Delaware became the first state to ratify the United States Constitution, thereby earning its nickname 'The First State'. This action was a crucial early step in the formation of the new federal government.
1907
Coal Mine Explosion in Monongah
A massive coal mine explosion in Monongah, West Virginia, killed at least 362 men, making it the worst mining disaster in American history. The tragedy highlighted the dangerous working conditions and spurred calls for improved safety regulations.
1995
Galileo Probe Enters Jupiter's Atmosphere
NASA's Galileo spacecraft released a probe that successfully entered the atmosphere of Jupiter. It transmitted data about the gas giant's composition and weather for about 58 minutes before being destroyed by extreme pressure and temperature.