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...

1911: Triangle Shirtwaist Factory Fire Kills 146

On March 25, 1911, a fire at New York City’s crowded, unsafe Triangle Shirtwaist Factory killed 146 workers. Public outrage over the incident galvanized...

On This Day: Charles Whitman Carries Out Sniper Attack From University of Texas Tower

Charles Whitman had been a model citizen before the rampage. One of the youngest Boy Scouts ever to earn Eagle Scout honors, he joined...

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...

1872: Susan B. Anthony Votes in Presidential Election

On Nov. 5, 1872, 48 years before the 19th Amendment gave women the right to vote, women’s rights activist Susan B. Anthony and a...

1960: South African Police Open Fire on Crowd in Sharpeville Massacre

On March 21, 1960, South African police fired into a crowd of black protesters who had surrounded a police station in Sharpeville, killing 69...

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...

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...

1965: Malcolm X Assassinated

On February 21, 1965, Malcolm X, a former Nation of Islam leader, was assassinated by Black Muslims in New York. Malcolm X Shot Dead in...

USSR established -1922

In post-revolutionary Russia, the Union of Soviet Socialist Republics (USSR) is established, comprising a confederation of Russia, Belorussia, Ukraine, and the Transcaucasian Federation (divided...