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...

1983: Reagan Delivers “Star Wars” Speech

On March 23, 1983, President Ronald Reagan proposed the development of the Strategic Defense Initiative (SDI), a space and ground-based defense system to intercept...

1587: Mary, Queen of Scots Beheaded

On February 8, 1587, Mary I of Scotland was beheaded for her alleged role in a conspiracy against her cousin Queen Elizabeth I of...

1971: Charles Manson and Followers Sentenced to Death

On March 29, 1971, a jury sentenced Charles Manson and three members of his “Family” to death for murdering actress Sharon Tate and seven...

1920: 19th Amendment Gives Women Right to Vote

On Aug. 18, 1920, the 19th Amendment was ratified after decades of struggle by women’s rights advocates, bringing a successful end to the U.S....

1887: First Groundhog Day Celebrated in Punxsutawney

On February 2, 1887, Punxsutawney, Pennsylvania, celebrated the first official Groundhog Day, a holiday with roots in ancient traditions. The Origins of Groundhog Day On February...

1970: Rhodesia Declares Itself a Republic

On March 2, 1970, Prime Minister Ian Smith severed Rhodesia’s remaining ties with Britain in an attempt to protect white minority rule. It would...

1461: Edward IV Deposes Henry VI in Wars of the Roses

On March 4, 1461, Edward, Duke of York, was crowned king of England, ending 62 years of Lancastrian rule. The Yorkists would rule England...

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...

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...