August 21st, 1755

Born on August 21st, 1755

Age in days, weeks and months
Wow, over 98,000 days old!

Why not celebrate an alternative birthday? In 45 days, exactly on September 9th, 2026, people who were born on August 21st, 1755 will be 99,000 days old!

... in seconds, minutes and hours

What happened on August 21st?

August 21st, 2007

BioShock was released in North America, becoming a critical success and a demonstration of video games as an art form.

August 21st, 2015

Passengers on a Thalys train from Amsterdam to Paris confronted and subdued an attacker who attempted a mass shooting.

August 21st, 2013

Syrian civil war: Areas controlled by the Syrian opposition in Ghouta, Damascus, were attacked by rockets (launcher pictured) containing sarin, killing at least 281 people.

August 21st, 1986

A limnic eruption of Lake Nyos in Cameroon released a cloud of carbon dioxide, suffocating 1,746 people and 3,500 livestock.

August 21st, 1963

South Vietnamese special forces loyal to Ngô Đình Nhu, the brother of President Ngô Đình Diệm, raided and vandalised Buddhist pagodas (one pictured) across the country, arresting thousands and leaving hundreds dead.

August 21st, 1945

American physicist Harry Daghlian accidentally dropped a tungsten carbide brick onto a plutonium bomb core, exposing himself to neutron radiation and later becoming the first Manhattan Project fatality due to a criticality accident.

August 21st, 1944

World War II: A combined Canadian–Polish force captured the town of Falaise, France, in the final offensive of the Battle of Normandy.

August 21st, 1942

World War II: The Imperial Japanese Army lost the Battle of the Tenaru, the first of its three major land offensives during the Guadalcanal campaign.

August 21st, 1911

Leonardo da Vinci's Mona Lisa (pictured) was stolen from the Louvre by museum employee Vincenzo Peruggia and was not recovered until two years later.

August 21st, 1858

The first of seven debates between Abraham Lincoln and Stephen A. Douglas (both pictured), candidates for an Illinois seat in the U.S. Senate, was held in Ottawa, Illinois.

August 21st, 1808

Peninsular War: British and Portuguese forces put an end to the first French invasion of Portugal at the Battle of Vimeiro.

August 21st, 1789

The national colours of Italy first appeared on a tricolour cockade in Genoa.

August 21st, 1717

Austro-Turkish War: Austrian troops under Prince Eugene of Savoy captured the strategically important city of Belgrade from the Ottoman Empire.

August 21st, 1716

Seventh Ottoman–Venetian War: Ottoman forces suddenly abandoned their siege of Corfu, allowing the Republic of Venice to preserve its rule over the Ionian Islands.

August 21st, 1689

Jacobite clans clashed with a regiment of Covenanters in the streets of Dunkeld, Scotland.

Birthdays
... of famous people, actors, celebrities and stars on August 21st

Same year
Born in 1755

37

Marie Antoinette

Last Queen of France prior to the French Revolution

*November 2nd, 1755, Hofburg Palace †October 16th, 1793, place de la Concorde

58

Donatien-Marie-Joseph de Rochambeau

French soldier

*April 7th, 1755, Paris †September 20th, 1813, Leipzig

68

Louis XVIII of France

Bourbon King of France and of Navarre (1755-1824)

*November 17th, 1755, Palace of Versailles †September 16th, 1824, Tuileries Palace

88

Samuel Hahnemann

German physician known for creating homeopathy

*April 10th, 1755, Meissen †July 2nd, 1843, former 1st arrondissement of Paris

75

Sarah Siddons

Welsh actress (1755-1831)

*July 5th, 1755, Brecon †June 8th, 1831, London

62

Jan Henryk Dąbrowski

Polish general (1755–1818)

*August 2nd, 1755, Pierzchów †June 6th, 1818, Winna Góra, Greater Poland Voivodeship

39

Jean-Pierre Claris de Florian

French writer

*March 6th, 1755, Sauve †September 13th, 1794, Sceaux

70

Jean Anthelme Brillat-Savarin

French lawyer, politician and writer (1755-1826)

*April 1st, 1755, Hôtel Brillat-Savarin †February 2nd, 1826, rue des Filles-Saint-Thomas

64

François Joseph Lefebvre

Marshal of France (1755-1820)

*October 25th, 1755, Rouffach †September 14th, 1820, Paris

38

Georges Couthon

French politician and lawyer (1755–1794)

*December 22nd, 1755, Orcet †July 28th, 1794, Paris

55

Michel Ordener

General of division and commander in Napoleon's elite Imperial Guard (1755-1811)

*September 2nd, 1755, L'Hôpital †August 30th, 1811, Compiègne

55

Maria Theresia Ahlefeldt

Member of the House of Thurn and Taxis (1755-1810)

*January 16th, 1755, Regensburg †December 20th, 1810, Prague

61

Dorothea Viehmann

German writer

*November 8th, 1755, Rengershausen †November 17th, 1816, Kassel

50

Brigida Banti

Italian opera singer (1755-1806)

*May 1st, 1755, Monticelli d'Ongina †February 18th, 1806, Bologna

83

Jean-Baptiste Huzard

French veterinarian (1755-1838)

*November 3rd, 1755, Paris †December 1st, 1838, Paris

89

Marie Arago

French housewife

*November 3rd, 1755, Corneilla-la-Rivière †September 5th, 1845, Estagel

94

Quatremère de Quincy

French archaeologist, architect and writer (1755–1849)

*October 28th, 1755, Paris †December 28th, 1849, Paris

39

Ignác Martinovics

Hungarian political activist

*July 22nd, 1755, Pest †May 20th, 1795, Buda

86

Bernhard Christoph Faust

German physician (1755-1842)

*May 23rd, 1755, Rotenburg an der Fulda †January 25th, 1842, Bückeburg

53

Benjamin Bourne

American politician (1755-1808)

*September 9th, 1755, Bristol †September 17th, 1808, Bristol

Birthdays of famous people

Public holidays on August 21st

Fixed holidays (Christian Feast Day) which are celebrated on August 21st.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1755 is a normal year and no leap year.

Calendar
August 1755