December 18th, 1173

Born on December 18th, 1173

Age in days, weeks and months
Wow, over 311,000 days old!

Why not celebrate an alternative birthday? In 593 days, exactly on March 10th, 2028, people who were born on December 18th, 1173 will be 312,000 days old!

... in seconds, minutes and hours

What happened on December 18th?

December 18th, 2017

An Amtrak Cascades passenger train derailed near DuPont, Washington, killing three people and injuring sixty-five others.

December 18th, 2009

The Copenhagen Summit on climate change ended with the drafting of the non-binding Copenhagen Accord.

December 18th, 1979

Mohammad Mofatteh, an Iranian philosopher, was assassinated by the Furqan Group.

December 18th, 2023

A series of mass protests began in Belgrade, Serbia, alleging electoral irregularities in the Serbian parliament and Belgrade city assembly elections.

December 18th, 1969

On Her Majesty's Secret Service, the sixth James Bond film and the only one to star George Lazenby, premiered at the Odeon Leicester Square in London.

December 18th, 1966

Epimetheus, one of the moons of Saturn, was discovered, but was mistaken for Janus; it took twelve years to determine that they are two distinct objects sharing the same orbit.

December 18th, 1963

Ghanaian and other African students organized a protest in Moscow's Red Square in response to the alleged murder of medical student Edmund Assare-Addo.

December 18th, 1958

The United States launched SCORE (rocket pictured), the world's first communications satellite.

December 18th, 1939

Second World War: The Luftwaffe won a victory over the Royal Air Force in the Battle of the Heligoland Bight, greatly influencing both sides' future aerial warfare strategy.

December 18th, 1932

Playing indoors at Chicago Stadium on a modified American football field, the Chicago Bears defeated the Portsmouth Spartans in the first playoff game of the National Football League.

December 18th, 1913

The Jew's Christmas, the first American film to include a rabbi as a character, was released.

December 18th, 1898

Gaston de Chasseloup-Laubat (pictured) set the first official land speed record, averaging 63.16 km/h (39.245 mph) over 1 km (0.62 mi) in Achères, France.

December 18th, 1867

In Angola, New York, the last coach of a Lake Shore Railway train derailed, plunged 40 feet (12 m) down a gully, and caught fire, resulting in approximately 49 deaths.

December 18th, 1622

Portuguese forces and their Imbangala allies defeated the Kongo army at the Battle of Mbumbi.

December 18th, 1499

Muslims in Granada began a rebellion against their Castilian rulers in response to forced conversions to Catholicism.

Public holidays on December 18th

Fixed holidays (Christian feast day) which are celebrated on December 18th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1173 is a normal year and no leap year.

Calendar
December 1173