December 13th, 1237

Born on December 13th, 1237

Age in days, weeks and months
Wow, over 287,000 days old!

Why not celebrate an alternative birthday? In 16 days, exactly on June 20th, 2026, people who were born on December 13th, 1237 will be 288,000 days old!

... in seconds, minutes and hours

What happened on December 13th?

December 13th, 1577

Francis Drake set sail from Plymouth, England, on his round-the-world voyage.

December 13th, 1294

Saint Celestine V resigned the papacy after only five months to return to his previous life as an ascetic hermit.

December 13th, 2011

A man threw grenades and fired a rifle at crowds in Liège, Belgium, causing 6 deaths and injuring more than 120 others, before killing himself.

December 13th, 1989

The Troubles: The Provisional Irish Republican Army engaged in a fierce firefight with the King's Own Scottish Borderers at a vehicle checkpoint complex in County Fermanagh, Northern Ireland.

December 13th, 1981

Polish prime minister Wojciech Jaruzelski (pictured) declared martial law.

December 13th, 1960

With Haile Selassie (pictured), Emperor of Ethiopia, out of the country, four conspirators staged a coup attempt to install Crown Prince Asfaw Wossen on the throne.

December 13th, 1937

Second Sino-Japanese War: Japanese forces, capturing the Chinese city of Nanjing, began committing numerous atrocities over the next several weeks, including looting, rape and the execution of prisoners of war and civilians.

December 13th, 1928

An American in Paris, a jazz-influenced orchestral piece by George Gershwin, premiered at Carnegie Hall in New York.

December 13th, 1862

American Civil War: Union forces under Ambrose Burnside suffered severe casualties against entrenched Confederate defenders at the Battle of Fredericksburg in Virginia.

December 13th, 1769

Dartmouth College (campus pictured) was established by royal charter in present-day Hanover, New Hampshire.

December 13th, 1643

First English Civil War: Roundhead forces under Sir William Waller led a successful surprise attack in Hampshire on a winter garrison of Cavalier infantry and cavalry.

December 13th, 2019

Jo Swinson (pictured) steps down as Leader of the Liberal Democrats after losing her seat in the 2019 general election making her tenure the shortest in the party's history.

December 13th, 2015

Beyoncé (pictured) released her fifth studio album without any prior announcement or promotion; it sold 2.3 million copies before the end of the year.

December 13th, 1991

Croatian War of Independence: The Croatian Army retreated after the failure of Operation Whirlwind, destroying their tanks to avoid their capture.

December 13th, 1809

Napoleonic Wars: While transporting supplies to Guadeloupe, French commodore François

Public holidays on December 13th

Fixed holidays (Christian feast day) which are celebrated on December 13th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1237 is a normal year and no leap year.

Calendar
December 1237