← April 12 April 13 April 14 →
April
13

April 13 has been shaped by royal edicts, wartime atrocities exposed, and diplomatic breakthroughs.

On This Day in History

1204
War & Conflict

Crusaders Sack Constantinople

Soldiers of the Fourth Crusade sacked Constantinople, the capital of the Christian Byzantine Empire. The three-day rampage destroyed priceless art and manuscripts.

1598
Religion

Edict of Nantes Signed

King Henry IV of France signed the Edict of Nantes, granting substantial religious freedom to French Protestants (Huguenots). It was one of the earliest decrees of religious tolerance.

1743
Politics

Thomas Jefferson Is Born

Thomas Jefferson was born at Shadwell plantation in Virginia. He would draft the Declaration of Independence, serve as the third President, and purchase the Louisiana Territory.

1870
Culture

Metropolitan Museum of Art Founded

The Metropolitan Museum of Art was incorporated in New York City. It would grow into one of the world's largest and most comprehensive art museums.

1943
War & Conflict

Katyn Massacre Discovered

Nazi Germany announced the discovery of mass graves of Polish officers in the Katyn Forest, murdered by the Soviet Union. The massacre of 22,000 Poles was a war crime covered up for decades.

Historical image during Sidney Poitier Wins Best Actor Oscar in 1964
Sidney Poitier Wins Best Actor Oscar, 1964. Illustration: AI-generated
1964
Civil Rights

Sidney Poitier Wins Best Actor Oscar

Sidney Poitier became the first African American to win the Academy Award for Best Actor for his role in 'Lilies of the Field.' The historic win was a milestone in Hollywood.

Historical image showing Apollo 13 Oxygen Tank Explodes in 1970
Apollo 13 Oxygen Tank Explodes, 1970. Photo: NASA
1970
Space

Apollo 13 Oxygen Tank Explodes

An oxygen tank aboard Apollo 13 exploded en route to the Moon, crippling the spacecraft. The crew of Lovell, Swigert, and Haise safely returned to Earth in a legendary rescue mission.

All Days in April

April 1 April 2 April 3 April 4 April 5 April 6 April 7 April 8 April 9 April 10 April 11 April 12 April 13 April 14 April 15 April 16 April 17 April 18 April 19 April 20 April 21 April 22 April 23 April 24 April 25 April 26 April 27 April 28 April 29 April 30