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...

1633: Galileo Faces Inquisition

On February 13, 1633, Galileo arrived in Rome to be tried for promoting Copernican theories, such as the revolutionary idea that the Earth orbits...

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...

1770: British Soldiers Kill 5 in “Boston Massacre”

On March 5, 1770, British soldiers stationed in Boston fired on a crowd of hecklers, killing five and wounding others. British Soldiers Open Fire on...

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...

1990: Nelson Mandela Released From Prison

On February 11, 1990, South African President Frederik Willem de Klerk freed anti-apartheid activist Nelson Mandela. Mandela had spent 27 years in prison. Mandela Goes...

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...

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...

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...

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...