On This Day: United States Drops Atomic Bomb on Hiroshima
On Aug. 6, 1945, U.S. war plane Enola Gay dropped “Little Boy,” a 8,900-pound atomic bomb, on Hiroshima, Japan. Within eight days, Japan surrendered,...
1820: The “Mayflower of Liberia” Sets Sail
On February 6, 1820, a ship of freed black slaves set sail from New York for the coast of West Africa, where they would...
1977: Hanafi Muslim Gunmen End Siege in Washington, DC
On March 11, 1977, Hamaas Abdul Khaalis, leader of the Nation of Islam splinter group Hanafi Movement, ended a three-day siege of three buildings...
1839: Dueling Outlawed in DC
On February 20, 1839, Congress passed legislation barring the practice of dueling in the District of Columbia.
Fatal Duel Between Congressmen Prompts Ban
The passage of...
1868: President Andrew Johnson Impeached
On February 24, 1868, Andrew Johnson became the first U.S. president to be impeached; the Senate subsequently acquitted him by a single vote.
House Impeaches...
1857: Supreme Court Rules Against Dred Scott
On March 6, 1857, the Supreme Court ruled against Dred Scott, a slave who sued for freedom after spending time in free territory. The...
1995: Aum Shinrikyo Cult Releases Nerve Gas on Tokyo Subway
On March 20, 1995, members of the Aum Shinrikyo cult released poisonous sarin gas on five Tokyo subway trains, killing 12 and injuring thousands.
Poisonous...
1960: Greensboro Lunch Counter Sit-ins Begin
On February 1, 1960, four black college students refused to leave a lunch counter where they were denied service, sparking a wave of sit-in...
1979: Nuclear Meltdown Occurs at Three Mile Island
On March 28, 1979, the Three Mile Island nuclear power plant experienced a partial meltdown. It was the worst-ever commercial nuclear accident in American history.
Meltdown...
1964: The Beatles Arrive in New York
On February 7, 1964, the Beatles were greeted by thousands of screaming fans as they landed at John F. Kennedy Airport in New York...










