December 20th, 1417

Born on December 20th, 1417

Age in days, weeks and months
Wow, over 221,000 days old!

Why not celebrate an alternative birthday? In 532 days, exactly on October 13th, 2025, people who were born on December 20th, 1417 will be 222,000 days old!

... in seconds, minutes and hours

What happened on December 20th?

December 20th, 1955

Cardiff was recognised as the capital of Wales by the British government.

December 20th, 1940

The superhero Captain America made his first published appearance in the comic book Captain America Comics #1.

December 20th, 1852

Led by George Cathcart, British troops defeated Basuto and Taung forces at the Battle of Berea in present-day Lesotho, leading to an offer of peace from King Moshoeshoe I.

December 20th, 1248

Attempting to form an alliance with the Mongol Empire, Louis IX of France met with two of their envoys while en route to the Seventh Crusade.

December 20th, 1968

The first two confirmed murders by the Zodiac Killer occurred in Benicia, California, in a case which remains unsolved.

December 20th, 2007

Pablo Picasso's Portrait of Suzanne Bloch was stolen from the São Paulo Museum of Art before being recovered about three weeks later.

December 20th, 1999

Portugal transferred the sovereignty over Macau, which it had administered since the mid–16th century, to China.

December 20th, 1995

Mandated by the Dayton Agreement that ended the Bosnian War, the NATO-led Implementation Force (troops pictured) began peacekeeping operations in Bosnia and Herzegovina.

December 20th, 1988

The United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances, governing international cooperation against the illegal drug trade, opened for signatures.

December 20th, 1980

NBC aired the American football match between the New York Jets and the Miami Dolphins without announcers.

December 20th, 1999

Macau is handed over to China by Portugal.

December 20th, 1995

American Airlines Flight 965, a Boeing 757, crashes into a mountain 50 km north of Cali, Colombia, killing 159 of the 163 people on board.

December 20th, 1977

With the approval of the State Council, China’s two largest newspapers, the People’s Daily and the Guangming Daily, publish in full for the first time the Second Chinese Character Simplification Scheme.

December 20th, 1991

A Missouri court sentences the Palestinian militant Zein Isa and his wife Maria to death for the honor killing of their daughter Palestina.

December 20th, 1970

Koza riot: After a series of hit-and-runs and other vehicular incidents involving American service personnel, roughly 5,000 Okinawans take to the streets, clashing with American law enforcement in protest against the U.S. occupation of Okinawa.

Birthdays
... of famous people, actors, celebrities and stars on December 20th

Same Day
Who's birthday is on December 20th?

28

Irama

Italian singer-songwriter (1995-)

*December 20th, 1995, Carrara

87

Hazel Hotchkiss Wightman

US tennis and badminton player

*December 20th, 1886, Healdsburg †December 5th, 1974, Chestnut Hill

34

Clarisse Crémer

French offshore sailor

*December 20th, 1989, Paris

25

Kylian Mbappé

French association football player

*December 20th, 1998, 19th arrondissement of Paris

76

Gigliola Cinquetti

Italian singer (1947-)

*December 20th, 1947, Verona

90

Ferdinand Buisson

French academic and politician (1841-1932)

*December 20th, 1841, former 1st arrondissement of Paris †February 16th, 1932, Thieuloy-Saint-Antoine

40

Lucy Pinder

British actress and model

*December 20th, 1983, Winchester

72

Wolfgang Güldenpfennig

East German rower

*December 20th, 1951, Magdeburg

48

Ignacio Escolar

Spanish blogger and journalist

*December 20th, 1975, Burgos

44

Michael Rogers

Australian cyclist

*December 20th, 1979, Barham

54

John III of Sweden

Swedish king

*December 20th, 1537, Stegeborg Castle †November 17th, 1592, Stockholm

90

Rik Van Looy

Belgian road racing cyclist

*December 20th, 1933, Grobbendonk

49

Carlos Da Cruz

Road bicycle racer

*December 20th, 1974, Saint-Denis

43

Michael Albasini

Swiss road bicycle racer

*December 20th, 1980, Brusio

68

Martin Schulz

German politician

*December 20th, 1955, Hehlrath

68

Binali Yıldırım

Turkish politician; 27th Prime Minister of Turkey

*December 20th, 1955, Sivas Province

75

Daniel Rebillard

French racing cyclist

*December 20th, 1948, Tournan-en-Brie

62

Albert Dekker

American actor and politician (1905–1968)

*December 20th, 1905, Brooklyn †May 5th, 1968, Hollywood

43

Ashley Cole

English footballer (born 1980)

*December 20th, 1980, Stepney

87

Kim Young-sam

President of South Korea from 1993 to 1998

*December 20th, 1927, Geoje †November 22nd, 2015, Seoul

Same year
Born in 1417

54

Paul II

Pope of the Catholic Church from 1464 to 1471

*February 23rd, 1417, Venice †July 26th, 1471, Rome

50

Sejo of Joseon

7th King of Joseon Dynasty in Korean history (1417-1468)

*September 24th, 1417, Gyeongbokgung †September 8th, 1468, Changgyeonggung

57

Giovanni Andrea Bussi

Italian bishop and humanist (1417–1475)

*July 14th, 1417, Vigevano †February 4th, 1475, Rome

61

Louis IX

Duke of Bavaria-Landshut

*February 23rd, 1417, Burghausen †January 18th, 1479, Landshut

62

Philip I, Count of Hanau-Lichtenberg

Count of Hanau-Lichtenberg

*November 8th, 1417, Windecken †May 10th, 1480, Ingwiller

51

Sigismondo Pandolfo Malatesta

Italian commandant

*June 19th, 1417, Brescia †October 7th, 1468, Rimini

63

Frederick I, Count Palatine of Simmern

Count of Veldenz and Count Palatine of Simmern

*November 19th, 1417, Simmern †November 29th, 1480, Simmern

69

William FitzAlan, 16th Earl of Arundel

English Earl

*November 23rd, 1417, Arundel †November 30th, 1486, Arundel

62

Diego Hurtado de Mendoza, 1st Duke of the Infantado

Spanish duke (1417-79)

*January 1st, 1417, Guadalajara †January 25th, 1479, Manzanares el Real

58

Catherine of Cleves

Duchess of Guelders (lived 1417 to 1479)

*May 25th, 1417, Kleve †February 10th, 1476, Rijnwaarden

63

Gallus Kemli

(1417-1481)

*November 18th, 1417, St. Gallen †January 1st, 1481

Birthdays of famous people

Public holidays on December 20th

Fixed holidays (Christian feast day, Earliest date for Winter solstice's eve) which are celebrated on December 20th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1417 is a normal year and no leap year.

Calendar
December 1417