August 21st, 1404

On this page

Born on August 21st, 1404 – Weekday, Age & Zodiac
Age in days, weeks and months
What happened on August 21st?
Birthdays of famous people
Public holidays on August 21st
Date as a Roman numeral / digit
Calendar (August 1404)

Born on August 21st, 1404

Weekday

Tuesday

August 21st, 1404 was a Tuesday.

Age

619

People born on August 21st, 1404 will turn 620 this year (2024), in exactly 52 days .

Zodiac

♌

Leo (The Lion)

July 23rd, 1404 - August 23rd, 1404

Age in days, weeks and months
Wow, over 226,000 days old!

Why not celebrate an alternative birthday? In 601 days, exactly on February 21st, 2026, people who were born on August 21st, 1404 will be 227,000 days old!

226,399 Days

32,342 Weeks

7,438 Months

... in seconds, minutes and hours

Seconds

Minutes

Hours

What happened on August 21st?

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 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–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 the command of 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 risings: Jacobite clans clashed with a regiment of Covenanters in the streets of Dunkeld, Scotland.

August 21st, 1689

The Battle of Dunkeld in Scotland.

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

Same Day
Who's birthday is on August 21st?

Elīza Tīruma

Latvian luger

*August 21st, 1990, Sigulda

Malynda Hale

Musical artist

*August 21st, 1986, Santa Barbara

Usain Bolt

Jamaican sprinter

*August 21st, 1986, Sherwood Content

Roelof Dednam

Badminton player

*August 21st, 1985, Bloemfontein

Geoffrey Keen

English actor (1916–2005)

*August 21st, 1916, Wallingford †November 3rd, 2005, Northwood

Steve Alten

American writer

*August 21st, 1959, Philadelphia

Kim Bruun

Badminton player

*August 21st, 1993, Seoul

Stephen Hillenburg

American marine science educator and artist (1961-2018)

*August 21st, 1961, Fort Sill †November 26th, 2018, San Marino

Herry Iman Pierngadi

Badminton coach from Indonesia

*August 21st, 1962, Pangkal Pinang

Kimberley Ashton

Badminton player

*August 21st, 1987, Jersey

Alizée

French singer (born 1984)

*August 21st, 1984, Ajaccio

Robert Lewandowski

Polish association football player

*August 21st, 1988, Leszno, Warsaw West County

Hermann Hammerschmidt

*August 21st, 1887, Cottbus †November 30th, 1944

Sergey Brin

American billionaire businessman (born 1973)

*August 21st, 1973, Moscow

Eve Torres

American actress, dancer, model and professional wrestler

*August 21st, 1984, Boston

William IV

King of the United Kingdom of Great Britain and Ireland and of Hanover from 1830 to 1837

*August 21st, 1765, Buckingham Palace †June 20th, 1837, Windsor Castle

Nigel Pearson

English association football player and manager (born 1963)

*August 21st, 1963, Nottingham

Melvin Van Peebles

American filmmaker

*August 21st, 1932, Chicago †September 21st, 2021, Manhattan

Clarence Williams III

American actor (1939–2021)

*August 21st, 1939, New York City †June 4th, 2021, Los Angeles

Hayden Panettiere

American actress, model, singer, and activist

*August 21st, 1989, Palisades

Same year
Born in 1404

Konstantinos XI Palaiologos

Last Byzantine emperor, from 1449 to 1453

*February 9th, 1404, Constantinople †May 29th, 1453, Constantinople

Leon Battista Alberti

Italian architect (1404-1472)

*February 14th, 1404, Genoa †April 25th, 1472, Rome

Gilles de Rais

Leader in the French army, companion-in-arms of Joan of Arc, convicted serial killer of children

*November 30th, 1404, Champtocé-sur-Loire †October 26th, 1440, Nantes

Marie of Anjou

Queen consort of France

*October 14th, 1404, Angers †November 29th, 1463, Les Châtelliers

Sir Philip Courtenay II

Senior member of a junior branch of the powerful Courtenay family of England

*January 18th, 1404, Ashton †December 16th, 1463

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

XXI.VIII.MCDIV

21.8.1404

Legend

M = 1000

CD = 400

X = 10

V = 5

IV = 4

I = 1

Leap year

Yes: 1404 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
August 1404

August 1404

w#	Mo	Tu	We	Th	Fr	Sa	Su
31			1	2	3	4	5
32	6	7	8	9	10	11	12
33	13	14	15	16	17	18	19
34	20	21	22	23	24	25	26
35	27	28	29	30	31

Date of birth

Try another date

Your birthday is more than just a day in the calendar!

20. August 1404

July 1404

21. August 1403
21. August 1399
21. August 1394
21. August 1354
21. August 1304
21. August 1204

22. August 1404

September 1404

21. August 1405
21. August 1409
21. August 1414
21. August 1454
21. August 1504
21. August 1604

w#	Mo	Tu	We	Th	Fr	Sa	Su
31			1	2	3	4	5
32	6	7	8	9	10	11	12
33	13	14	15	16	17	18	19
34	20	21	22	23	24	25	26
35	27	28	29	30	31

w#	Mo	Tu	We	Th	Fr	Sa	Su
31			1	2	3	4	5
32	6	7	8	9	10	11	12
33	13	14	15	16	17	18	19
34	20	21	22	23	24	25	26
35	27	28	29	30	31

August 21st, 1404

Born on August 21st, 1404

Weekday

Tuesday

Age

Zodiac

♌

Leo (The Lion)

Age in days, weeks and months Wow, over 226,000 days old!

226,399 Days

32,342 Weeks

7,438 Months

... in seconds, minutes and hours

Seconds

Minutes

Hours

What happened on August 21st?

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

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.

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

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

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.

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

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.

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.

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.

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

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

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

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.

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

The Battle of Dunkeld in Scotland.

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

Same Day Who's birthday is on August 21st?

Same year Born in 1404

Birthdays of famous people

Public holidays on August 21st

Abraham of Smolensk (Eastern Orthodox Church)

Euprepius of Verona

Maximilian of Antioch

Our Lady of Knock

Pope Pius X

Sidonius Apollinaris

August 21 (Eastern Orthodox liturgics)

Ninoy Aquino Day (Philippines)

Youth Day (Morocco)

World Senior Citizen's Day

Date as a Roman numeral / digit

21.8.1404

Legend

Leap year

Calendar August 1404

August 1404

Date of birth

Try another date

Try another date

Age in days, weeks and months
Wow, over 226,000 days old!

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

Same Day
Who's birthday is on August 21st?

Same year
Born in 1404

Calendar
August 1404

w#	Mo	Tu	We	Th	Fr	Sa	Su
31			1	2	3	4	5
32	6	7	8	9	10	11	12
33	13	14	15	16	17	18	19
34	20	21	22	23	24	25	26
35	27	28	29	30	31