August 17th, 1231

Born on August 17th, 1231

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

Why not celebrate an alternative birthday? In 436 days, exactly on August 14th, 2025, people who were born on August 17th, 1231 will be 290,000 days old!

... in seconds, minutes and hours

What happened on August 17th?

August 17th, 2009

A hydroelectric turbine at the Sayano-Shushenskaya Dam in Russia catastrophically failed, flooding the turbine hall, killing 75 people and causing widespread power outages.

August 17th, 2008

Michael Phelps won his eighth gold medal of the Beijing Summer Olympics, the most golds by any person at a single games.

August 17th, 1969

Hurricane Camille struck the Mississippi coast of the United States, killing 259 people and causing $1.42 billion in damage..

August 17th, 1959

American musician Miles Davis released Kind of Blue, which became one of the best-selling and most critically acclaimed jazz recordings of all time.

August 17th, 1950

Korean War: Forty-two American prisoners of war were massacred by the Korean People's Army on a hill above Waegwan, South Korea.

August 17th, 1945

Animal Farm, George Orwell's satirical allegory of Soviet totalitarianism, was first published.

August 17th, 1943

Winston Churchill and Franklin D. Roosevelt met in a highly secret military conference (pictured) held in Quebec City.

August 17th, 1916

World War I: Romania signed a secret treaty with the Entente Powers, agreeing to enter the war in return for promised territory in Austria-Hungary.

August 17th, 1915

A category 4 hurricane made landfall in Galveston, Texas, leaving at least 275 people dead and causing $50 million in damage.

August 17th, 1914

World War I: Ignoring orders to retreat, Hermann von François led a successful counterattack defending East Prussia at the Battle of Stallupönen and scored the first German victory in the Eastern Front.

August 17th, 1907

Pike Place Market , one of the oldest continuously operated public farmers' markets in the U.S. and a popular tourist attraction, opened in Seattle, Washington.

August 17th, 1676

Scanian War: Swedish forces defeated Danish troops at the Battle of Halmstad.

August 17th, 1424

Hundred Years' War: Allied English and Burgundian forces gained a strategically important victory at the bloody Battle of Verneuil in Normandy, France.

August 17th, 0986

Byzantine–Bulgarian wars: The Bulgarians defeated Byzantine forces at the Battle of the Gates of Trajan near present-day Ihtiman, with Emperor Basil II barely escaping.

August 17th, 2017

Barcelona attacks: A van is driven into pedestrians in La Rambla, killing 14 and injuring at least 100.

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

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

45

Vibeke Stene

Gothic metal soprano singer, ex female vocals of Tristania

*August 17th, 1978, Sokndal

80

Robert De Niro

American actor (born 1943)

*August 17th, 1943, Greenwich Village

20

The Kid Laroi

Australian rapper and singer (born 2003)

*August 17th, 2003, Waterloo

54

Markus Gisdol

German association football player and manager

*August 17th, 1969, Geislingen an der Steige

89

Jean-Jacques Sempé

French cartoon artist

*August 17th, 1932, Bordeaux †August 11th, 2022, Ampus

77

Judi Rollick

Badminton player

*August 17th, 1944, Seattle †April 5th, 2022

85

Carl Ausfeld

German judge (1814–1900)

*August 17th, 1814, Schnepfenthal †January 22nd, 1900, Siebleben

36

Bendik Brænne

Norwegian musician

*August 17th, 1987, Bærum Municipality

37

Marcus Berg

Swedish association football player

*August 17th, 1986, Torsby

87

Mona Andersson

Swedish actress

*August 17th, 1936, Örgryte församling

76

Anders Hatlo

Norwegian actor and film director

*August 17th, 1947, Larvik

63

Pierre de Fermat

French mathematician and lawyer

*August 17th, 1601, Beaumont-de-Lomagne †January 12th, 1665, Castres

46

Natasza Urbańska

Polish actress and singer

*August 17th, 1977, Warsaw

70

Herta Müller

German-Romanian novelist, poet and essayist

*August 17th, 1953, Nițchidorf

69

Ingrid Daubechies

Belgian physicist and mathematician

*August 17th, 1954, Houthalen-Helchteren

45

Mehdi Baala

French middle-distance runner

*August 17th, 1978, Strasbourg

63

Sean Penn

American actor and filmmaker (born 1960)

*August 17th, 1960, Santa Monica

96

Jiang Zemin

General Secretary of the Communist Party of China from 1989 to 2002

*August 17th, 1926, Yangzhou †November 30th, 2022, Shanghai

28

Gracie Gold

American figure skater

*August 17th, 1995, Newton

74

Julian Fellowes

English actor, dramatist, director, novelist, producer and screenwriter

*August 17th, 1949, Cairo

35

Brady Corbet

American actor

*August 17th, 1988, Scottsdale

23

Lil Pump

American rapper

*August 17th, 2000, Miami

76

Robert von Mohl

German legal scholar and politician (1799–1875)

*August 17th, 1799, Stuttgart †November 4th, 1875, Berlin

45

Disha Vakani

Indian actress

*August 17th, 1978, Ahmedabad

52

Helen McCrory

British actress (1968–2021)

*August 17th, 1968, London †April 16th, 2021, London

46

Thierry Henry

French association football player and manager

*August 17th, 1977, Les Ulis

46

William Gallas

French association football player

*August 17th, 1977, Asnières-sur-Seine

33

David Koresh

American religious sect leader of Branch Davidians (1959-1993)

*August 17th, 1959, Houston †April 19th, 1993, Mount Carmel Center

63

Stephan Eicher

Swiss singer

*August 17th, 1960, Münchenbuchsee

75

Larry Clinton

American musician (1909–1985)

*August 17th, 1909, Brooklyn †May 2nd, 1985, Tucson

67

Evelyn Ankers

Actress (1918-1985)

*August 17th, 1918, Valparaíso †August 29th, 1985, Maui

61

Gene Stratton-Porter

American writer and naturalist (1863–1924)

*August 17th, 1863, Lagro †December 6th, 1924, Los Angeles

62

Franziska von Wertheimstein

Austrian salon-holder

*August 17th, 1844, Vienna †February 19th, 1907, Vienna

41

Phil Jagielka

English association football player

*August 17th, 1982, Sale

77

Jean-Paul Besset

French journalist and politician

*August 17th, 1946, Chamalières

31

Harald Reinkind

Norwegian handball player

*August 17th, 1992, Trondheim

71

Lothar Bisky

German politician (1941-2013)

*August 17th, 1941, Korzybie, Pomeranian Voivodeship †August 13th, 2013, Leipzig

79

Larry Ellison

American internet entrepreneur and businessman

*August 17th, 1944, The Bronx

32

Marion Rousse

French cyclist

*August 17th, 1991, Saint-Saulve

20

Rayan Cherki

French and Algerian association football player

*August 17th, 2003, Lyon

Birthdays of famous people

Public holidays on August 17th

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

Date as a Roman numeral / digit

Leap year

No: With 365 days 1231 is a normal year and no leap year.

Calendar
August 1231