December 20th, 1231

Born on December 20th, 1231

Age in days, weeks and months
Wow, over 289,000 days old!

Why not celebrate an alternative birthday? In 576 days, exactly on December 17th, 2025, people who were born on December 20th, 1231 will be 290,000 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

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

82

Dora Montefiore

Suffragette, socialist, writer

*December 20th, 1851, Coulsdon †December 21st, 1933, Hastings

22

Sepp van den Berg

Dutch association football player

*December 20th, 2001, Zwolle

54

John III of Sweden

Swedish king

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

74

Jacqueline Pearce

British actress (1943-2018)

*December 20th, 1943, Woking †September 3rd, 2018, Lancashire

59

Kim Ki-duk

South Korean film director (1960–2020)

*December 20th, 1960, Bonghwa County †December 11th, 2020, Riga

40

Jonah Hill

American actor (born 1983)

*December 20th, 1983, Los Angeles

86

Manfred Lahnstein

German politician

*December 20th, 1937, Erkrath

82

Otto Graf Lambsdorff

German politician (1926–2009)

*December 20th, 1926, Aachen †December 5th, 2009, Bonn

63

Nalo Hopkinson

Jamaican-born Canadian writer

*December 20th, 1960, Kingston

71

Lena Strothmann

German politician

*December 20th, 1952, Münster

67

Mohamed Ould Abdel Aziz

President of Mauritania from 2009 to 2019

*December 20th, 1956, Akjoujt

52

Thomas Gebhart

German politician

*December 20th, 1971, Kandel

32

Jorginho

Brazilian and Italian association football player

*December 20th, 1991, Imbituba

75

Alan Parsons

British audio engineer, musician, and record producer

*December 20th, 1948, Willesden

86

Charley Grapewin

American actor (1869-1956)

*December 20th, 1869, Xenia †February 2nd, 1956, Corona

55

Doina Ignat

Romanian rower

*December 20th, 1968, Rădăuți-Prut

32

Fabian Schär

Swiss footballer

*December 20th, 1991, Wil

76

Paul Francis Webster

American lyricist

*December 20th, 1907, New York City †March 18th, 1984, Beverly Hills

95

Hannelis Schulte

German theologian (1920-2016)

*December 20th, 1920, Heidelberg †April 12th, 2016

65

Henry Kimball Hadley

American composer (1871-1937)

*December 20th, 1871, Somerville †September 6th, 1937, New York City

39

Bob Morley

Australian actor

*December 20th, 1984, Kyneton

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 1231 is a normal year and no leap year.

Calendar
December 1231