What happened on March 21

39 events · 20 births · 20 deaths · 7 observances. From 1556 to 2026.

Phra Phrom
Photo: Photo Dharma from Sadao, Thailand · CC BY 2.0

Standout on March 21

2006

Phra Phrom

Historical event · 20 years ago

A man smashed the statue of Phra Phrom at the Erawan Shrine in Bangkok, Thailand, with a hammer, and was subsequently beaten to death by bystanders.

About March 21

March 21 is the 80th day of the year. These facts are computed from the calendar, not copied from anywhere.

Day of the year
Day 80 of 365 (81 in leap years)285 days left in the year (285 in leap years)
Falls on
Saturday in 2026, Sunday in 2027, Tuesday in 2028, Wednesday in 2029, Thursday in 2030
Week
ISO week 12 of 2026 · Q1
Zodiac sign
♈ Aries (March 21 – April 19)Cusp date — the exact boundary shifts by a day in some years.
Season
Spring in the north · Autumn in the south
March birthstone
Aquamarine / Bloodstoneserenity, courage and health
March birth flower
Daffodil / Jonquilnew beginnings and rebirth
Next occurrence
In 148 days
Roman numerals
XXI.IIIday.month — see the Roman numeral date tool

Anniversaries in 2026

All round-number anniversaries in 2026 →

Born on March 21 — ages this year

Historical events 39

A dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.

Historical event200620 years ago

Jack Dorsey

Jack Dorsey sent the first message on the social-media network Twitter.

Historical event200620 years ago

Social media

The social media site Twitter (now officially named X) is founded.

Phra Phrom
Photo: Photo Dharma from Sadao, Thailand · CC BY 2.0

Historical event200620 years ago

Phra Phrom

A man smashed the statue of Phra Phrom at the Erawan Shrine in Bangkok, Thailand, with a hammer, and was subsequently beaten to death by bystanders.

Pope John Paul II

Historical event200026 years ago

Pope John Paul II

Pope John Paul II makes his first ever pontifical visit to Israel.

Historical event199927 years ago

Bertrand Piccard

Bertrand Piccard and Brian Jones become the first to circumnavigate the Earth in a hot air balloon.

Namibia

Historical event199036 years ago

Namibia

Namibia becomes independent after 75 years of South African rule.

Historical event198937 years ago

Transbrasil Flight 801

Transbrasil Flight 801 crashes into a slum near São Paulo/Guarulhos International Airport, killing 25 people.

Historical event198640 years ago

Debi Thomas

Debi Thomas becomes the first African American to win the World Figure Skating Championships.

Historical event198541 years ago

Paraplegia

Canadian paraplegic athlete and humanitarian Rick Hansen begins his circumnavigation of the globe in a wheelchair in the name of spinal cord injury medical research.

Historical event198343 years ago

West Bank

In the West Bank, a number of Palestinian girls complained of breathing difficulties due to strange odors, leading to accusations of poison gas.

Historical event198343 years ago

1983 West Bank fainting epidemic

The first cases of the 1983 West Bank fainting epidemic begin; Israelis and Palestinians accuse each other of poison gas, but the cause is later determined mostly to be psychosomatic.

Historical event198046 years ago

Dallas (TV series)

The American soap opera Dallas aired the episode "A House Divided", which led to eight months of international speculation on "Who shot J.R.?"

Cold War

Historical event198046 years ago

Cold War

Cold War: American President Jimmy Carter announces a United States boycott of the 1980 Summer Olympics in Moscow to protest the Soviet–Afghan War.

Historical event197056 years ago

Earth Day

The first Earth Day proclamation is issued by Joseph Alioto, Mayor of San Francisco.

Historical event197056 years ago

San Diego Comic-Con

San Diego Comic-Con, the largest pop and culture festival in the world, hosts its inaugural event.

Historical event196858 years ago

War of Attrition

War of Attrition: The Battle of Karameh took place between the Israel Defense Forces and allied troops of the Palestine Liberation Organization and the Jordanian Armed Forces.

Historical event196858 years ago

Battle of Karameh

Battle of Karameh in Jordan between the Israel Defense Forces and the combined forces of the Jordanian Armed Forces and PLO.

Historical event196561 years ago

Martin Luther King Jr.

Martin Luther King Jr. leads 3,200 people on the start of the third and finally successful civil rights march from Selma to Montgomery, Alabama.

Historical event196561 years ago

Ranger program

Ranger program: NASA launches Ranger 9, the last in a series of uncrewed lunar space probes.

Historical event196363 years ago

Federal Bureau of Prisons

The Federal Bureau of Prisons closed Alcatraz Federal Penitentiary on Alcatraz Island (pictured) in San Francisco Bay, California.

Historical event196066 years ago

Sharpeville

Police in Sharpeville, South Africa, opened fire on a group of unarmed black demonstrators who were protesting pass laws, killing 69 people and wounding 180 others.

Historical event196066 years ago

Apartheid

Apartheid: Sharpeville massacre, South Africa: Police open fire on a group of black South African demonstrators, killing 69 and wounding 180.

Historical event195274 years ago

Moondog Coronation Ball

The Moondog Coronation Ball, generally considered to be the first major rock and roll concert, took place at the Cleveland Arena in Cleveland, Ohio.

Historical event195274 years ago

Alan Freed

Alan Freed presents the Moondog Coronation Ball, the first rock and roll concert, in Cleveland, Ohio.

Historical event194680 years ago

Los Angeles Rams

The Los Angeles Rams signed Kenny Washington, making him the first African-American player in the National Football League since 1933.

Blanton Winship

Historical event193789 years ago

Blanton Winship

A police squad, acting under orders from Governor of Puerto Rico Blanton Winship, opened fire on demonstrators protesting the arrest of Puerto Rican Nationalist leader Pedro Albizu Campos, killing 21 people and injuring 235 others.

Historical event1918108 years ago

World War I

First World War: The German Army opened the Spring Offensive with Operation Michael, attempting to break through the Allied lines and to seize ports on the English Channel.

Historical event1913113 years ago

Great Dayton Flood

More than 360 were killed and 20,000 homes were destroyed in the Great Dayton Flood in Dayton, Ohio, U.S.

Historical event1874152 years ago

Queen's Park F.C.

Queen's Park defeated Clydesdale 2–0 in the final of the inaugural Scottish Cup.

Historical event1861165 years ago

Alexander H. Stephens

Alexander H. Stephens, Vice President of the Confederate States of America, gave an extemporaneous speech laying out the Confederacy's rationale for seceding from the United States.

Historical event1844182 years ago

Baháʼí calendar

The Baháʼí calendar, used in the Baháʼí Faith, began.

Historical event1814212 years ago

War of the Sixth Coalition

War of the Sixth Coalition: During their march on Paris, Coalition forces defeated Napoleon's French army on the final day of the Battle of Arcis-sur-Aube.

Thomas Cranmer

Historical event1556470 years ago

Thomas Cranmer

Thomas Cranmer, a former archbishop of Canterbury and one of the founders of Anglicanism, was burned at the stake for heresy in Oxford, England.

Births 20

A notable person born on this day. Each links to a person page with their dates and story.

Yoon San-ha
Photo: User:ZStoler , User:WarX , gmaxwell · Public domain

Birth200026 years ago

Yoon San-ha

Yoon San-ha, South Korean singer and actor

Full profile →

Deaths 20

A notable person who died on this day.

Chuck Bednarik
Photo: Unknown author Unknown author · Public domain

Death201511 years ago

Chuck Bednarik

Chuck Bednarik, American lieutenant and football player (born 1925)

Full profile →

Holidays & observances 7

A holiday, feast day, awareness day or national day observed every year on this date.

Holiday / observanceEvery year

Birillus

Christian feast day: Birillus

Holiday / observanceEvery year

Enda of Aran

Christian feast day: Enda of Aran

Holiday / observanceEvery year

Benedict of Nursia

Christian feast day: Passing of Saint Benedict (Order of Saint Benedict, pre-1970 Calendar)

Holiday / observanceEvery year

Nicholas of Flüe

Christian feast day: Nicholas of Flüe

Holiday / observanceEvery year

Arbor Day

Arbor Day (Lesotho)

Spread across the centuries

  • 16th century1
  • 18th century1
  • 19th century5
  • 20th century45
  • 21st century27

Earliest: Thomas Cranmer (1556). Most recent: Michael Lyster (2026).

What the categories mean, and how the standout is chosen
Historical events
A dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Births
A notable person born on this day. Each links to a person page with their dates and story.
Deaths
A notable person who died on this day.
Milestones
A first, a founding or a turning point our editors flagged as a landmark moment.
Holidays & observances
A holiday, feast day, awareness day or national day observed every year on this date.
Standout / notable
Editor-written entries come first, then entries covered by the most Wikipedia language editions. For the standout tile we prefer an entry that has a picture.

Nearby and related

Questions about March 21

What day of the year is March 21?

March 21 is the 80th day of the year, with 285 days left after it.

What star sign is March 21?

March 21 falls under Aries (March 21 – April 19), a fire sign ruled by Mars. The birthstone for the month is Aquamarine or Bloodstone.

How many things happened on March 21?

We record 86 entries for March 21: 39 events · 20 births · 20 deaths · 7 observances. From 1556 to 2026.

Who was born on March 21?

Ethan Nwaneri (2007) is among the notable births on March 21. The births section lists the rest.

How often is the March 21 page updated?

The day is filled the first time anyone opens it and then re-checked for new entries about every 90 days. Computed facts such as the weekday and the anniversaries update every year.

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Text adapted from Wikipedia under CC BY-SA 4.0 and from Wikidata (CC0). Images come from Wikimedia Commons; credit and licence are shown with each image. Editorial entries are © What's On This Date. Sources & licensing · How this site works.