1421 August 1421 August 21st, 1421

On this page
  1. Born on August 21st, 1421 – Weekday, Age & Zodiac
  2. Age in days, weeks and months
  3. What happened on August 21st?
  4. Birthdays of famous people
  5. Public holidays on August 21st
  6. Date as a Roman numeral / digit
  7. Calendar (August 1421)

Born on August 21st, 1421

Weekday

Tuesday

August 21st, 1421 was a Tuesday.

Age

602

People born on August 21st, 1421 will turn 603 this year (2024), in exactly 110 days .

Zodiac

♌

Leo (The Lion)

July 23rd, 1421 - August 23rd, 1421

Age in days, weeks and months
Wow, over 220,000 days old!

Why not celebrate an alternative birthday? In 868 days, exactly on September 18th, 2026, people who were born on August 21st, 1421 will be 221,000 days old!

220,132 Days

31,447 Weeks

7,232 Months

... in seconds, minutes and hours

Seconds
Minutes
Hours

What happened on August 21st?

Thalys August 21st, 2015

Passengers on a Thalys train from Amsterdam to Paris confronted and subdued an attacker who attempted a mass shooting.
Syrian civil war 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.
Limnic eruption 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.
Army of the Republic of Vietnam Special Forces 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.
Harry Daghlian 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.
World War II 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.
World War II 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.
Leonardo da Vinci 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.
Lincoln–Douglas debates 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.
Peninsular War August 21st, 1808

Peninsular War: British–Portuguese forces put an end to the first French invasion of Portugal at the Battle of Vimeiro.
National colours of Italy August 21st, 1789

The national colours of Italy first appeared on a tricolour cockade in Genoa.
Austro-Turkish War (1716–1718) 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.
Ottoman–Venetian War (1714–1718) 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.
Jacobitism August 21st, 1689

Jacobite risings: Jacobite clans clashed with a regiment of Covenanters in the streets of Dunkeld, Scotland.
Battle of Dunkeld 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: Age & Birthday 33
Elīza Tīruma

Latvian luger

*August 21st, 1990, Sigulda
Malynda Hale: Age & Birthday 37
Malynda Hale

Musical artist

*August 21st, 1986, Santa Barbara
Usain Bolt: Age & Birthday 37
Usain Bolt

Jamaican sprinter

*August 21st, 1986, Sherwood Content
38
Roelof Dednam

Badminton player

*August 21st, 1985, Bloemfontein
89
Geoffrey Keen

English actor (1916–2005)

*August 21st, 1916, Wallingford †November 3rd, 2005, Northwood
64
Steve Alten

American writer

*August 21st, 1959, Philadelphia
30
Kim Bruun

Badminton player

*August 21st, 1993, Seoul
Stephen Hillenburg: Age & Birthday 57
Stephen Hillenburg

American marine science educator and artist (1961-2018)

*August 21st, 1961, Fort Sill †November 26th, 2018, San Marino
61
Herry Iman Pierngadi

Badminton coach from Indonesia

*August 21st, 1962, Pangkal Pinang City
36
Kimberley Ashton

Badminton player

*August 21st, 1987, Jersey
Alizée: Age & Birthday 39
Alizée

French singer

*August 21st, 1984, Ajaccio
Robert Lewandowski: Age & Birthday 35
Robert Lewandowski

Polish association football player

*August 21st, 1988, Leszno, Warsaw West County
57
Hermann Hammerschmidt
*August 21st, 1887, Cottbus †November 30th, 1944
Sergey Brin: Age & Birthday 50
Sergey Brin

American computer scientist and Internet entrepreneur

*August 21st, 1973, Moscow
Eve Torres: Age & Birthday 39
Eve Torres

American actress, dancer, model and professional wrestler

*August 21st, 1984, Boston
William IV: Age & Birthday 71
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: Age & Birthday 60
Nigel Pearson

English association football player and manager (born 1963)

*August 21st, 1963, Nottingham
Melvin Van Peebles: Age & Birthday 89
Melvin Van Peebles

American filmmaker

*August 21st, 1932, Chicago †September 21st, 2021, Manhattan
Mohammed: Age & Birthday 60
Mohammed

King of Morocco since 1999

*August 21st, 1963, Rabat
Clarence Williams III: Age & Birthday 81
Clarence Williams III

American actor (1939–2021)

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

Same year
Born in 1421

Henry VI of England: Age & Birthday 49
Henry VI of England

King of England (1421–1471)

*December 6th, 1421, Windsor Castle †May 21st, 1471, Tower of London
39
Henry Percy, 3rd Earl of Northumberland

English noble

*July 25th, 1421, Leconfield †March 29th, 1461, Battle of Towton
40
Charles, Prince of Viana

King of Navarre

*May 29th, 1421, Peñafiel †September 23rd, 1461, Barcelona
59
Barbara of Brandenburg

Marchioness of Mantua

*November 30th, 1421, Margraviate of Brandenburg †November 7th, 1481, Mantua
42
Giovanni di Cosimo de' Medici

Italian banker

*June 3rd, 1421, Florence †November 1st, 1463, Florence

Birthdays of famous people

Adele: Age & BirthdayStephen Barclay: Age & BirthdayCarrie Henn: Age & BirthdayJan Tore Sanner: Age & BirthdayChukwuma Akabueze: Age & BirthdayMa Jin: Age & BirthdayMatti Geschonneck: Age & BirthdayJohanna Goliszewski: Age & BirthdayKarl Marx: Age & BirthdayKjell Bækkelund: Age & Birthday

Public holidays on August 21st

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

Abraham of Smolensk (Eastern Orthodox Church)
Christian Feast Dayen.wikipedia.org/wiki/Abraham_of_Smolensk
Euprepius of Verona
Christian Feast Dayen.wikipedia.org/wiki/Euprepius_of_Verona
Maximilian of Antioch
Christian Feast Dayen.wikipedia.org/wiki/Maximilian_of_Antioch
Our Lady of Knock
Christian Feast Dayen.wikipedia.org/wiki/Knock_Shrine
Pope Pius X
Christian Feast Dayen.wikipedia.org/wiki/Pope_Pius_X
Sidonius Apollinaris
Christian Feast Dayen.wikipedia.org/wiki/Sidonius_Apollinaris
August 21 (Eastern Orthodox liturgics)
Christian Feast Dayen.wikipedia.org/wiki/August_21_(Eastern_Orthodox_liturgics)
Ninoy Aquino Day (Philippines)
en.wikipedia.org/wiki/Ninoy_Aquino_Day
Youth Day (Morocco)
en.wikipedia.org/wiki/Youth_Day
World Senior Citizen's Day
en.wikipedia.org/wiki/World_Senior_Citizen's_Day

Date as a Roman numeral / digit

XXI.VIII.MCDXXI

21.8.1421

Legend

M = 1000CD = 400X = 10V = 5I = 1

Leap year

No: With 365 days 1421 is a normal year and no leap year.

Calendar
August 1421

August 1421

w# Mo Tu We Th Fr Sa Su
31 12345
32 6789101112
33 13141516171819
34 20212223242526
35 2728293031

Date of birth

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