December 29th, 1240

Born on December 29th, 1240

Age in days, weeks and months
Wow, over 286,000 days old!

Why not celebrate an alternative birthday? In 76 days, exactly on October 10th, 2026, people who were born on December 29th, 1240 will be 287,000 days old!

... in seconds, minutes and hours

What happened on December 29th?

December 29th, 1913

Cecil B. DeMille started filming Hollywood's first feature film, The Squaw Man (featured).

December 29th, 1996

Peace accords were signed under the leadership of President Álvaro Arzú and guerrilla leader Rolando Morán, ending the 36-year-long Guatemalan Civil War.

December 29th, 1975

Planted by unknown perpetrators, a bomb exploded (aftermath pictured) at LaGuardia Airport in New York City, killing 11 people and seriously injuring 74 others.

December 29th, 1959

American physicist Richard Feynman gave a speech entitled "There's Plenty of Room at the Bottom" at Caltech, anticipating the field of nanotechnology.

December 29th, 1940

Second World War: The Luftwaffe began a major night bombing raid on the British capital as part of the Blitz, beginning what was later called the "Second Great Fire of London".

December 29th, 1928

The Northern Expedition, a military campaign by the National Revolutionary Army of the Kuomintang, ended with the complete control of the Republic of China.

December 29th, 1915

First World War: The French parliament passed a law granting the land occupied by British war graves as "the free gift of the French people".

December 29th, 1911

Sun Yat-sen was elected the provisional president of the Republic of China in Nanjing.

December 29th, 1890

Sioux Wars: The United States Army killed 250 to 300 Lakota men, women and children at the Wounded Knee Massacre, beginning the Ghost Dance War.

December 29th, 1876

A railway bridge collapsed over the Ashtabula River in Ohio, killing 92 people and injuring 64 others on a Lake Shore and Michigan Southern Railway train.

December 29th, 1860

To counter the French Navy's Gloire, the world's first ironclad warship, the Royal Navy launched HMS Warrior, the world's first iron-hulled armoured warship.

December 29th, 1845

The Republic of Texas was annexed by the United States, becoming the 28th state to be admitted to the Union.

December 29th, 1812

War of 1812: In a three-hour single-ship action, HMS Java (drawing shown) was captured by USS Constitution off the coast of Brazil.

December 29th, 1778

American Revolutionary War: Lieutenant Colonel Archibald Campbell led a contingent of British soldiers to capture the city of Savannah, Georgia.

December 29th, 1937

The Constitution of Ireland, the founding legal document of the state known today as the Republic of Ireland, came into force.

Public holidays on December 29th

Fixed holidays (Christian feast day) which are celebrated on December 29th.

Date as a Roman numeral / digit

Leap year

Yes: 1240 is a leap year, therefore has a 29th of February with an additional leap day and a total of 366 days (instead of the usual 365 days in a normal year).

Calendar
December 1240