HISTORY & TIMELINE
21 March

A journey through
21 March in history

From the burning of Archbishop Cranmer in 1556 to the first tweet in 2006, 21 March has seen a code of laws that spread around the world, the great German spring offensive of 1918, the closing of Alcatraz and a boycott of the Moscow Olympics. This timeline follows the date across four and a half centuries.

III
A CHANGING WORLD

Early Modern Era

Exploration, political change, scientific development and expanding global connections.

1556
The burning of Thomas Cranmer, from John Foxe's Book of Martyrs, 1583 (Bodleian Libraries).The burning of Thomas Cranmer, from John Foxe’s Book of Martyrs, 1583 (Bodleian Libraries).Image: John Foxe · CC BY-SA 3.0
culture · Europe

Archbishop Cranmer is burned at Oxford

Thomas Cranmer, who as Archbishop of Canterbury had led the English Reformation and written the Book of Common Prayer, was burned for heresy under the Catholic Queen Mary I. He had signed several recantations, but at the end he took them back, and by tradition he held the hand that had signed them into the flames first. The date is by the calendar then used in England.

Source: Encyclopaedia Britannica: Thomas Cranmer, martyrdom ↗
IV
THE NINETEENTH CENTURY

The 1800s

Industry, empire, invention, reform and a century of enormous transformation.

1804
The title page of the original official edition of the Code civil des Français, Paris, 1804.The title page of the original official edition of the Code civil des Français, Paris, 1804.Image: De l'Imprimiere de la République · CC BY 2.0
politics · Europe

France gets its Civil Code

On 21 March 1804 a law brought into force the Civil Code of the French, which gathered the country’s patchwork of old laws into one text of 2,281 articles. Napoleon, then First Consul, had chaired many of the sessions where it was drafted. It set out equality before the law, secure rights to property and civil marriage and divorce, though it left wives firmly under their husbands’ authority. Renamed the Code Napoléon in 1807, it became the model for civil law across Europe and Latin America, and still underlies French law.

Source: Encyclopaedia Britannica: Napoleonic Code ↗
V
THE TWENTIETH CENTURY

The 1900s

War and peace, technological leaps, social change, politics, sport and popular culture.

1918
A map of the German advance of 21-23 March 1918, published in The Times.A map of the German advance of 21-23 March 1918, published in The Times.Image: The Times · Public domain
world · Europe

Germany’s spring offensive begins

Before dawn, thousands of German guns opened a massive bombardment on the Western Front, and storm troops attacked through the fog against the British Third and Fifth Armies. About 38,500 British soldiers were killed, wounded or captured that day, 21,000 of them taken prisoner. The offensive regained the old Somme battlefield but stalled by early April, leaving Germany exhausted.

Source: Australian War Memorial: Operation Michael, the German offensive of 21 March 1918 ↗
1960
The row of graves of the 69 people killed at Sharpeville, Phelindaba Cemetery, 2017.The row of graves of the 69 people killed at Sharpeville, Phelindaba Cemetery, 2017.Image: Andrew Hall · CC BY-SA 4.0
politics · Africa

The Sharpeville massacre

On 21 March 1960 the Pan Africanist Congress called on Black South Africans to protest against the pass laws, which forced them to carry passbooks. Thousands gathered outside the police station in Sharpeville township, south of Johannesburg, and police opened fire. Sixty-nine people were killed and more than 180 wounded. The government declared a state of emergency and banned the ANC and the PAC. South Africa now marks 21 March as Human Rights Day, and the United Nations as the International Day for the Elimination of Racial Discrimination.

Source: South African History Online: Sharpeville massacre, 21 March 1960 ↗
1963
The main prison building on Alcatraz Island, 2022.The main prison building on Alcatraz Island, 2022.Image: Dietmar Rabich · CC BY-SA 4.0
politics · Americas

Alcatraz closes

The last inmates were taken off Alcatraz, the federal prison on an island in San Francisco Bay that had held Al Capone and ‘Machine Gun’ Kelly. Salt air had eaten into the buildings and it had become too costly to run. The island is now run by the National Park Service and visited by more than a million people a year.

Source: US National Park Service: US Penitentiary Alcatraz ↗
1965
Marchers on the Selma to Montgomery march in March 1965, on a US National Park Service card.Marchers on the Selma to Montgomery march in March 1965, on a US National Park Service card.Image: TradingCardsNPS · CC BY 2.0
politics · Americas

The march from Selma to Montgomery

Two weeks after state troopers beat peaceful marchers on the Edmund Pettus Bridge, about 3,200 people led by Martin Luther King Jr. set out from Selma, Alabama, on 21 March 1965, this time under the protection of federal troops, to walk 54 miles to the state capital. When they reached the Capitol in Montgomery on 25 March, their numbers had grown to about 25,000. The Voting Rights Act became law that August, and the route is now a National Historic Trail.

Source: US National Park Service: Selma to Montgomery march ↗
1980
Countries that boycotted the 1980 Moscow Olympics, shown in blue.Countries that boycotted the 1980 Moscow Olympics, shown in blue.Image: TheAwesomeHwyh, after Paasikivi and NuclearVacuum · CC BY-SA 4.0
sport · Americas

The United States boycotts the Moscow Olympics

In protest at the Soviet invasion of Afghanistan, President Jimmy Carter met representatives of America’s Olympic teams at the White House on 21 March 1980 and told them the United States would not go to the Summer Games in Moscow. About 60 countries stayed away. Hundreds of American athletes lost their only chance of competing at an Olympics, and in 1984 the Soviet Union led a boycott of the Games in Los Angeles.

Source: The American Presidency Project, UC Santa Barbara: Remarks to representatives of US teams to the 1980 Summer Olympics ↗
1990
Sam Nujoma, Namibia's first president, in 2004.Sam Nujoma, Namibia’s first president, in 2004.Image: Ana Nascimento/ABr · CC BY 3.0 br
politics · Africa

Namibia becomes independent

At midnight on 20-21 March 1990, after decades of South African rule and a long war of liberation, Namibia became independent. The UN Secretary-General, Javier Pérez de Cuéllar, swore in the SWAPO leader Sam Nujoma as its first president. Guests included South Africa’s president F. W. de Klerk and Nelson Mandela, freed from prison only weeks before. Namibia celebrates 21 March as Independence Day.

Source: Encyclopaedia Britannica: Sam Nujoma ↗
VI
2000 TO TODAY

Modern Day

The events of recent decades that have already become part of the historical record.

2006
Jack Dorsey's notebook sketch for the service that became Twitter, 2006.Jack Dorsey’s notebook sketch for the service that became Twitter, 2006.Image: Jack Dorsey · CC BY 2.0
science · Americas

The first tweet

On 21 March 2006 Jack Dorsey, working at a small podcasting company in San Francisco, posted the first message on a new service then called ‘twttr’: ‘just setting up my twttr’. The service opened to the public that July. As Twitter, and from 2023 as X, it became one of the world’s most influential places for news, politics and argument.

Source: Chatham House, The World Today: Date with history, the first tweet takes flight ↗
WHY THESE MOMENTS?

Significance before volume

This page is not the longest possible list of events. It is a chronological journey through 21 March, where each entry is chosen for historical significance, human interest and reliability.

Facts are checked against authoritative museums, archives, universities and reference works. Where sources disagree, the page says so.

EXPLORED THE DEEPER STORY?

Return to the highlights of 21 March

Discover the lighter side of the date with famous birthdays, culture, firsts and lives remembered.

Explore This Day →
← PREVIOUS DAY20 March
HISTORY & TIMELINE21 March
NEXT DAY →22 March