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...

1923: King Tut’s Tomb Unsealed

On February 16, 1923, King Tutankhamen’s tomb was unsealed and entered by an excavation team led by British archaeologist Howard Carter and financial backer...

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...

1989: Exxon Valdez Wreck Causes Massive Oil Spill

On March 24, 1989, the oil tanker Exxon Valdez struck a reef in Alaska’s Prince William Sound, causing 11 million gallons of oil to...

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...

1917: Russia’s February Revolution Begins

On March 8, 1917, the female factory workers of Petrograd began striking and rioting in response to food shortages and government oppression. Other Petrograd...

1962: Soviets Release U-2 Pilot Francis Gary Powers

On February 10, 1962, U-2 spy plane pilot Francis Gary Powers was returned to the United States in a prisoner exchange. Powers had been...

1991: Rodney King Beaten by LAPD

On March 3, 1991, a group of white Los Angeles police officers were videotaped severely beating black suspect Rodney King. The officers were later...

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...

1952: British WWII Code Breaker Alan Turing Goes on Trial for Homosexuality

On March 31, 1952, Alan Turing, computer technology pioneer and breaker of the Nazi Enigma code, was put on trial for homosexual acts. Found...