1737: First St. Patrick’s Day Celebrated in America

On March 17, 1737, Boston became the first American city to celebrate the feast day of St. Patrick, Ireland’s patron saint. St. Patrick’s Day Comes...

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...

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...

On This Day: United States Drops Atomic Bomb on Hiroshima

On Aug. 6, 1945, U.S. war plane Enola Gay dropped “Little Boy,” a 8,900-pound atomic bomb, on Hiroshima, Japan. Within eight days, Japan surrendered,...

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...

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...

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...

1960: Earthquake Kills Thousands in Morocco

On February 29, 1960, a magnitude 5.7 earthquake struck Agadir, Morocco. The 15-second event killed thousands and leveled parts of the city. It was a...

1949: “Axis Sally” Convicted of Treason

On March 10, 1949, a jury found American-born Nazi propagandist Mildred E. Gillars, the radio broadcaster known as “Axis Sally,” guilty of treason. “Axis Sally”...

1938: “Kristallnacht” Attacks Mark Unofficial Start of Holocaust

On Nov. 9, 1938, Nazi storm troopers launched a coordinated attack against Jewish communities, destroying property and shipping thousands to concentration camps. “Night of Broken...