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...

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...

1836: Santa Anna Launches Siege on the Alamo

On February 23, 1836, Mexican General Santa Anna began a siege against nearly 200 Texan rebels stationed inside the Alamo. He launched an assault...

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...

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...

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...

1898: USS Maine Explodes in Havana Harbor

On February 15, 1898, the U.S. battleship Maine blew up in Havana Harbor, escalating tensions with Spain and contributing to the outbreak of the...

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...

1991: “Birmingham Six” Freed After 16 Years in Prison

On March 14, 1991, six men wrongfully accused of carrying out Irish Republican Army (IRA) bombing attacks on two Birmingham pubs were released after...

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...