September 17th, 1256

Born on September 17th, 1256

Age in days, weeks and months
Wow, over 280,000 days old!

Why not celebrate an alternative birthday? In 614 days, exactly on January 24th, 2026, people who were born on September 17th, 1256 will be 281,000 days old!

... in seconds, minutes and hours

What happened on September 17th?

September 17th, 2018

The Israeli Air Force conducted missile strikes that hit multiple targets in western Syria, including one that accidentally downed a Russian plane.

September 17th, 2011

Adbusters, a Canadian anti-consumerist publication, organized a protest against corporate influence on democracy at Zuccotti Park in New York City that became known as Occupy Wall Street.

September 17th, 1980

Solidarity, a Polish trade union, was founded as the first independent labor union in an Eastern Bloc country.

September 17th, 1970

The Jordanian army entered Amman as part of operations to oust Palestinian fedayeen from the country in events later known as Black September (smoke over city pictured).

September 17th, 1962

NASA announced the Next Nine astronauts (pictured) selected for the purpose of landing on the moon.

September 17th, 1958

Tintin in Tibet, the twentieth volume of The Adventures of Tintin by the Belgian cartoonist Hergé and which he regarded as his favourite in the series, began serialisation.

September 17th, 1939

World War II: The Soviet Union invaded Poland from the east, sixteen days after Nazi Germany's attack on the country from the west.

September 17th, 1914

Andrew Fisher, whose previous term as Prime Minister of Australia oversaw a period of reform unmatched in the Commonwealth until the 1940s, became prime minister for the third time.

September 17th, 1894

The controversial Mormon bishop and prophetic dreamer John Hyrum Koyle began excavating the Dream Mine, which he believed would provide financial support to members of the LDS Church.

September 17th, 1878

A British surveyor was detained by the Zulu on the border with the Colony of Natal; a demand for reparations for the incident formed part of an ultimatum that led to the Anglo-Zulu War.

September 17th, 1862

American Civil War: Almost 23,000 total casualties were suffered at the Battle of Antietam near Sharpsburg, Maryland, where Confederate and Union troops fought to a tactical stalemate.

September 17th, 1859

Disgruntled with the legal and political structures of the United States, Joshua Norton (pictured) distributed letters to various newspapers in San Francisco proclaiming himself to be Emperor Norton.

September 17th, 1849

Harriet Tubman (pictured) escaped from slavery in the U.S. state of Maryland, and later orchestrated the rescues of other slaves via the Underground Railroad.

September 17th, 1793

War of the Pyrenees: Forces from the French Army of the Eastern Pyrenees defeated two divisions of the Army of Catalonia, ending the furthest Spanish encroachment in their invasion of Roussillon.

September 17th, 1775

American Revolutionary War: The Continental Army under Richard Montgomery began the Siege of Fort St. Jean in the British province of Quebec.

Birthdays
... of famous people, actors, celebrities and stars on September 17th

Same Day
Who's birthday is on September 17th?

73

Narendra Modi

14th Prime Minister of India

*September 17th, 1950, Vadnagar

24

Khalimatus Sadiyah

Para badminton player

*September 17th, 1999, Mojokerto City

61

Baz Luhrmann

Australian writer, director, and producer

*September 17th, 1962, Sydney

29

Hank Williams

American singer-songwriter (1923–1953)

*September 17th, 1923, Mount Olive †January 1st, 1953, Oak Hill

55

Anastacia

American singer

*September 17th, 1968, Chicago

73

Anne Bancroft

American actress (1931–2005)

*September 17th, 1931, The Bronx †June 6th, 2005, New York City

48

Jimmie Johnson

American racing driver

*September 17th, 1975, El Cajon

43

Markus Krösche

German association football player and manager

*September 17th, 1980, Hanover

62

Pamela Melroy

American astronaut

*September 17th, 1961, Palo Alto

89

Jean-Claude Carrière

French writer (1931-2021)

*September 17th, 1931, Colombières-sur-Orb †February 8th, 2021, 9th arrondissement of Paris

54

John Ritter

American actor (1948-2003)

*September 17th, 1948, Burbank †September 11th, 2003, Burbank

34

Danielle Brooks

American actress

*September 17th, 1989, Augusta

88

Serge Klarsfeld

Romanian-born French activist and Nazi hunter (b. 1935)

*September 17th, 1935, Bucharest

58

O.P. Heggie

American actor (1877-1936)

*September 17th, 1877, Angaston †February 7th, 1936, Los Angeles

92

Jürgen Kuczynski

German economist and economic historian (1904-1997)

*September 17th, 1904, Elberfeld †August 6th, 1997, Berlin

78

Dorothy Loudon

American actress, singer, performer (1925-2003)

*September 17th, 1925, Boston †November 15th, 2003, New York City

48

Constantine Maroulis

American singer

*September 17th, 1975, New Jersey

42

Griff Furst

American actor and film director

*September 17th, 1981, Van Nuys

77

Pat Crowley

Actress (1933-)

*September 17th, 1933, Olyphant †May 24th, 2011

84

Günther Fielmann

German Chief executive officer of Fielmann

*September 17th, 1939, Stafstedt †January 3rd, 2024, Lütjensee

52

Jens Voigt

German road bicycle racer and cycling broadcaster

*September 17th, 1971, Grevesmühlen

80

Horst Krüger

German writer

*September 17th, 1919, Magdeburg †October 21st, 1999, Frankfurt

79

Reinhold Messner

Italian mountaineer, adventurer and explorer

*September 17th, 1944, Brixen

56

Agostinho Neto

President of Angola (1922-1979)

*September 17th, 1922, Ícolo e Bengo †September 10th, 1979, Moscow

71

Jérôme Bonaldi

French journalist

*September 17th, 1952, 7th arrondissement of Lyon

32

Jake Jervis

English association football player (born 1991)

*September 17th, 1991, Wolverhampton

73

Sherrie Hewson

English actress

*September 17th, 1950, Burton Joyce

65

Janez Janša

Slovenian politician (born 1958)

*September 17th, 1958, Grosuplje

86

Klaus Schütz

German politician (SPD) (1926-2012)

*September 17th, 1926, Heidelberg †November 29th, 2012, Berlin

26

Minamoto no Sanetomo

3rd shogun of Kamakura shogunate and poet

*September 17th, 1192, Nagoe †February 13th, 1219, Tsurugaoka Hachiman-gū

81

Vladimir Menshov

Soviet film director

*September 17th, 1939, Baku †July 5th, 2021, Moscow

50

Jean-Antoine-Nicolas de Caritat de Condorcet

French philosopher, mathematician, and political scientist (1743-1794)

*September 17th, 1743, Ribemont †March 29th, 1794, Bourg-la-Reine

90

Stirling Moss

British motor racing driver (1929-2020)

*September 17th, 1929, West Kensington †April 12th, 2020, Mayfair

39

Bernhard Riemann

German mathematician

*September 17th, 1826, Jameln †July 20th, 1866, Verbania

72

Sergio Ferrari

Italian footballer (1943-2016)

*September 17th, 1943, Oggiono †April 2nd, 2016, Lecco

58

Bryan Singer

American film director, writer and producer

*September 17th, 1965, New York City

37

Paolo De Ceglie

Italian footballer

*September 17th, 1986, Aosta

27

Ella Purnell

British actress

*September 17th, 1996, Whitechapel

70

Roddy McDowall

British actor (1928–1998)

*September 17th, 1928, London †October 3rd, 1998, Studio City

85

Jacinto Gimbernard

Dominican violinist and writer

*September 17th, 1931, Santo Domingo †May 24th, 2017

Birthdays of famous people

Public holidays on September 17th

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

Date as a Roman numeral / digit

Leap year

Yes: 1256 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
September 1256