HISTORY & TIMELINE
22 March

A journey through
22 March in history

From the suppression of the Knights Templar in 1312 to the first Pentium chip in 1993, 22 March has seen a tax that helped spark a revolution, the end of slavery in Puerto Rico, the first laser patent and a comet that lit up the night sky. This timeline follows the date across seven centuries.

II
THE MIDDLE AGES

Medieval History

Kingdoms, conflict, faith, power and the changing medieval world.

1312
Saint-Maurice Cathedral in Vienne, France, where the church council of 1311-12 met.Saint-Maurice Cathedral in Vienne, France, where the church council of 1311-12 met.Image: Arnaud-Victor Monteux · CC BY-SA 3.0
culture · Europe

The pope dissolves the Knights Templar

The Knights Templar had grown rich and powerful since the Crusades. From 1307 King Philip IV of France had its members arrested and tortured into confessions. On 22 March 1312, during a church council at Vienne, Pope Clement V issued the bull Vox in excelso, which dissolved the order. The pope did not find the order guilty of heresy. He suppressed it on the grounds that its reputation was beyond repair, under heavy pressure from Philip, who had arrived at Vienne two days earlier. Most of the Templars’ property passed to the rival Knights Hospitaller.

Source: Catholic Encyclopedia (New Advent): Council of Vienne ↗
III
A CHANGING WORLD

Early Modern Era

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

1622
John Smith seizing Opechancanough, chief of the Pamunkey, in 1608, in a 17th-century engraving.John Smith seizing Opechancanough, chief of the Pamunkey, in 1608, in a 17th-century engraving.Image: Robert Vaughan · Public domain
world · Americas

The Powhatan attack on the Virginia colony

Warriors of the Powhatan confederacy, led by Opechancanough, struck at least 31 English settlements along the James River in a co-ordinated attack. They killed 347 colonists, about a quarter of the colony, though Jamestown itself was warned in time. The attack began a war that lasted ten years. The date is by the calendar then used by the English.

Source: Encyclopedia Virginia: Anglo-Powhatan War, Second (1622-1632) ↗
1765
The burning of stamped paper in Boston, as pictured on a postcard of 1903.The burning of stamped paper in Boston, as pictured on a postcard of 1903.Image: Unknown author · Public domain
politics · Americas

The Stamp Act becomes law

On 22 March 1765 the Stamp Act received royal assent in London. It was the first direct tax that Parliament laid on Britain’s thirteen American colonies: from November, newspapers, legal documents, pamphlets, playing cards and even dice would have to carry a paid-for stamp. The prime minister, George Grenville, wanted the colonies to share the cost of defending them after the Seven Years’ War. Instead the tax united them in protest under the cry of ‘no taxation without representation’. Stamp distributors were forced to resign, and Parliament repealed the act in 1766, but the quarrel it began ended in revolution.

Source: UK Parliament: The Stamp Act, 1765 ↗
IV
THE NINETEENTH CENTURY

The 1800s

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

1873
The statue of the abolitionist Román Baldorioty de Castro in San Juan, 2012.The statue of the abolitionist Román Baldorioty de Castro in San Juan, 2012.Image: Thief12 (Carlo Giovannetti) · CC BY-SA 3.0
world · Americas

Slavery is abolished in Puerto Rico

On 22 March 1873 Spain’s National Assembly voted to abolish slavery in its colony of Puerto Rico. About 29,000 people, roughly one in twenty of the island’s population, were freed. Freedom came with conditions: the former slaves were bound to labour contracts for three more years, and their former owners were compensated. Puerto Rico still marks 22 March as Emancipation Day, a public holiday.

Source: Library of Congress research guide: Abolition of Slavery in Puerto Rico ↗
1895
A frame from the Lumière film of workers leaving their factory in Lyon.A frame from the Lumière film of workers leaving their factory in Lyon.Image: Lumière brothers (film frame) · Public domain
culture · Europe

Louis Lumière shows his first film

On 22 March 1895, at the end of a lecture in Paris to a society for the encouragement of French industry, Louis Lumière projected a short film of workers leaving his family’s factory in Lyon onto a screen. About 200 people watched. It was a private demonstration of the brothers’ new Cinématographe, which could film, print and project. Their first paying public show followed in Paris that December.

Source: Institut Lumière: Le Cinématographe Lumière ↗
V
THE TWENTIETH CENTURY

The 1900s

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

1945
The headquarters of the Arab League in Cairo, 2008.The headquarters of the Arab League in Cairo, 2008.Image: Ijanderson977 · Public domain
politics · Middle East

The Arab League is founded

On 22 March 1945 representatives of seven states, Egypt, Iraq, Transjordan, Lebanon, Saudi Arabia, Syria and Yemen, signed the Pact of the League of Arab States in Cairo. The league set out to strengthen ties between its members, co-ordinate their policies and settle disputes between them peacefully. It keeps its headquarters in Cairo and has grown to 22 members across the Middle East and North Africa.

Source: Yale Law School, Avalon Project: Pact of the League of Arab States, 22 March 1945 ↗
1946
Abdullah I, Transjordan's first king, photographed by Cecil Beaton.Abdullah I, Transjordan’s first king, photographed by Cecil Beaton.Image: Cecil Beaton · Public domain
politics · Middle East

Britain signs a treaty recognising Transjordan’s independence

In London, Britain and Transjordan signed a treaty of alliance ending the British mandate and recognising Transjordan as an independent state. Emir Abdullah was proclaimed king that May, and independence took effect in June, though Britain kept military bases and paid for the Arab Legion. The country was renamed Jordan in 1949.

Source: Institute for Palestine Studies, PalQuest: Treaty of Alliance between Great Britain and Transjordan, 22 March 1946 ↗
1960
The physicist Charles Townes.The physicist Charles Townes.Image: Unknown author · Public domain
science · Americas

The first laser patent

On 22 March 1960 the US Patent Office granted patent 2,929,922 to Arthur Schawlow and Charles Townes of Bell Laboratories for ‘masers and maser communications system’, the idea of amplifying light itself. Theodore Maiman built the first working laser that May. The patent was challenged for decades by Gordon Gould, who had coined the word ‘laser’, and Townes shared the 1964 Nobel Prize in Physics.

Source: American Physical Society, Physical Review Focus: Invention of the Maser and Laser ↗
1972
Alice Paul, who wrote the first version of the Equal Rights Amendment in 1923, photographed in 1920.Alice Paul, who wrote the first version of the Equal Rights Amendment in 1923, photographed in 1920.Image: Harris & Ewing, Inc. · Public domain
world · Americas

The US Senate passes the Equal Rights Amendment

By 84 votes to 8, the Senate sent the Equal Rights Amendment, guaranteeing equal rights under the law regardless of sex, to the states for ratification. Hawaii approved it within hours, but the amendment fell short of the 38 states it needed before its deadline.

Source: US Senate: Senate passes ERA ↗
1993
The silicon die of an early 66 MHz Intel Pentium processor.The silicon die of an early 66 MHz Intel Pentium processor.Image: Pdesousa359 · CC BY-SA 3.0
science · Americas

Intel ships the Pentium

On 22 March 1993 Intel began shipping the Pentium, the fifth generation of the processors inside most personal computers. The first chips ran at 60 or 66 MHz and packed 3.1 million transistors. It was Intel’s first processor with a name rather than a number, taken from the Greek for ‘five’. The brand ran for decades, though an early flaw in its division sums led to a costly recall in 1994.

Source: Intel timeline: The Birth of Pentium ↗
1997
Comet Hale-Bopp above a tree near Pazin, Croatia, 29 March 1997.Comet Hale-Bopp above a tree near Pazin, Croatia, 29 March 1997.Image: Philipp Salzgeber · CC BY-SA 2.0 at
science · Global

Comet Hale-Bopp comes closest to Earth

On 22 March 1997 Comet Hale-Bopp made its closest approach to Earth, passing about 197 million kilometres away. It reached its closest point to the Sun on 1 April. Bright enough to see with the naked eye for about 18 months, even from city streets, it became one of the most widely watched comets in history.

Source: NASA Jet Propulsion Laboratory: Comet Hale-Bopp timeline, 1997 ↗
VI
2000 TO TODAY

Modern Day

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

2016
Flowers and flags at the memorial on the Place de la Bourse in Brussels, May 2016.Flowers and flags at the memorial on the Place de la Bourse in Brussels, May 2016.Image: Miguel Discart from Bruxelles, Belgique · CC BY-SA 2.0
world · Europe

Bomb attacks in Brussels

Suicide bombers struck the departure hall of Brussels Airport and a metro train at Maalbeek station, near the European Union’s institutions. Thirty-two people were killed and more than 300 injured. Islamic State claimed responsibility.

Source: Belgian federal government: Terrorist attacks on Brussels Airport and Metro Maelbeek ↗
WHY THESE MOMENTS?

Significance before volume

This page is not the longest possible list of events. It is a chronological journey through 22 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.

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