December 17th, 1421

Born on December 17th, 1421

Age in days, weeks and months
Wow, over 220,000 days old!

Why not celebrate an alternative birthday? In 205 days, exactly on January 14th, 2027, people who were born on December 17th, 1421 will be 221,000 days old!

... in seconds, minutes and hours

What happened on December 17th?

December 17th, 2010

Arab Spring: Mohamed Bouazizi, a street vendor in Sidi Bouzid, set himself on fire in protest against police harassment, triggering the Tunisian revolution.

December 17th, 1990

American gay rights activist William E. Woods brought three same-sex couples to fill out marriage licenses in Honolulu.

December 17th, 1989

The Simpsons, the longest running American prime-time entertainment series, made its debut on the Fox television network with the episode "Simpsons Roasting on an Open Fire".

December 17th, 1983

The Troubles: The Provisional Irish Republican Army detonated a car bomb outside Harrods in London, killing six people and injuring about 90 others.

December 17th, 1970

Polish soldiers fired at workers (memorial pictured) emerging from trains in Gdynia, beginning the government's crackdown on mass anti-communist protests across the country.

December 17th, 1967

Harold Holt, the prime minister of Australia, disappeared while swimming near Portsea, Victoria; his body was never recovered.

December 17th, 1948

The Finnish Security Police was established to remove communist leadership from its predecessor, the State Police.

December 17th, 1945

The modern flag of Kurdistan was raised for the first time in Mahabad, Iran.

December 17th, 1944

Nazi troops under Joachim Peiper killed unarmed prisoners of war, captured during the Battle of the Bulge, with machine guns near Malmedy, Belgium.

December 17th, 1939

World War II: After sustaining moderate damage in the Battle of the River Plate two days earlier, the German cruiser Graf Spee was scuttled by its commander, Hans Langsdorff, to avoid its internment by Uruguay.

December 17th, 1926

A coup d'état by the Lithuanian military replaced the democratically elected President Kazys Grinius with Antanas Smetona.

December 17th, 1918

About 1,000 demonstrators marched (pictured) on Government House in Darwin, Australia, where they burned an effigy of Administrator John Gilruth and demanded his resignation.

December 17th, 1903

Aboard the Wright Flyer (pictured) in Kitty Hawk, North Carolina, Orville and Wilbur Wright conducted the first successful flights of a powered fixed-wing aircraft.

December 17th, 1862

American Civil War: Union General Ulysses S. Grant issued General Order No. 11, expelling Jews from Tennessee, Mississippi, and Kentucky.

December 17th, 1790

The Aztec sun stone (pictured), now a modern symbol of Mexican culture, was excavated in the Zócalo, the main square of Mexico City.

Public holidays on December 17th

Fixed holidays (Christian feast day) which are celebrated on December 17th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1421 is a normal year and no leap year.

Calendar
December 1421