Explore 3 September

Explore 3 September: the Treaty of Paris ends the American War of Independence, Britain and France go to war with Germany, Qatar becomes independent, the Mamluks halt the Mongols at Ain Jalut and Viking 2 lands on Mars. Born today: Louis Sullivan, Urho Kekkonen and Irene Papas.

This day through time →14 verified events across 4 eras

The last page of the Treaty of Paris of 1783, with the signatures and seals of David Hartley for Britain and John Adams, Benjamin Franklin and John Jay for the United States
The last page of the Treaty of Paris of 1783, with the signatures and seals of David Hartley for Britain and John Adams, Benjamin Franklin and John Jay for the United States
Image creditUnknown · Public domainResized and cropped for display.

The Treaty of Paris ends the American War of Independence

The fighting in the American War of Independence had all but ended when a British army under Lord Cornwallis surrendered at Yorktown in October 1781. Peace talks began in Paris the next spring. The American commissioners, Benjamin Franklin, John Adams and John Jay, negotiated directly with the British envoy, and in November 1782 they agreed preliminary terms, even though their French allies had expected to be consulted first.

The final treaty was signed in Paris on 3 September 1783, on the same day as Britain’s separate peace with France and Spain at Versailles. Britain recognised the independence of the United States, with a western border on the Mississippi River, while keeping Canada. Americans kept the right to fish off Newfoundland, debts on both sides were to be honoured, and Congress was to urge the states to restore property taken from loyalists. Congress ratified the treaty in January 1784, bringing a new nation formally into being.

Read the full storyHistory & Timeline →Source: US National Archives: Treaty of Paris (1783) ↗
Crowds outside the British Embassy in Warsaw cheer Britain's declaration of war on Germany on 3 September 1939
Crowds outside the British Embassy in Warsaw cheer Britain’s declaration of war on Germany on 3 September 1939
Image creditUnknown · Public domainResized and cropped for display.

Britain and France declare war on Germany

Through the 1930s Britain and France had tried to avoid another great war by giving way to Adolf Hitler, most famously at Munich in 1938, when they let Germany take part of Czechoslovakia. When Hitler seized the rest of the country in March 1939, they promised to defend Poland. On 1 September German forces invaded Poland, and the two governments demanded that Germany withdraw.

At nine o’clock on the morning of Sunday 3 September 1939 the British ambassador in Berlin delivered a final ultimatum that expired at eleven. No reply came, and at 11.15 the prime minister, Neville Chamberlain, told the nation by radio that Britain was at war with Germany. France’s ultimatum ran out later that day, and Australia and New Zealand also declared war. Yet the allies could do little to save Poland, and months of the ‘Phoney War’ passed before the fighting in the west began in earnest.

Read the full storyHistory & Timeline →Source: Imperial War Museums: How Europe went to war in 1939 ↗
Rulers of the Gulf emirates, including Qatar, at the opening of their first conference on a possible union in February 1968, after Britain announced it would leave the Gulf
Rulers of the Gulf emirates, including Qatar, at the opening of their first conference on a possible union in February 1968, after Britain announced it would leave the Gulf
Image creditAnonymous photographer · Public domainResized and cropped for display.

Qatar becomes an independent state

For more than half a century Qatar, a peninsula jutting into the Persian Gulf, had been a British protected state under a treaty signed in 1916, with Britain in charge of its defence and foreign affairs. Oil, exported from 1949, transformed its economy. In January 1968 Britain announced that it would withdraw its forces from east of Suez, and Qatar joined talks with Bahrain and the Trucial States on forming a union of Gulf emirates.

The talks failed to agree, and Qatar chose to go its own way. On 3 September 1971 the heir apparent and prime minister, Sheikh Khalifa bin Hamad Al Thani, announced the end of the 1916 treaty and Qatar’s full independence, and a new treaty of friendship with Britain replaced it. Qatar joined the United Nations and the Arab League within weeks. Its vast reserves of natural gas later made it one of the richest countries in the world.

Read the full storyHistory & Timeline →Source: Amiri Diwan of the State of Qatar: History of Qatar ↗
A gold dinar struck in the name of the Mamluk sultan Qutuz, who led the army at Ain Jalut, from the American Numismatic Society
A gold dinar struck in the name of the Mamluk sultan Qutuz, who led the army at Ain Jalut, from the American Numismatic Society
Image creditAmerican Numismatic Society · CC0Resized and cropped for display.

The Mamluks halt the Mongols at Ain Jalut

In the 1250s the Mongol prince Hülegü, brother of the Great Khan, swept through Persia and in 1258 sacked Baghdad, ending the Abbasid caliphate. In 1260 his armies took Aleppo and Damascus. When Hülegü withdrew east with most of his forces after the death of the Great Khan, he left his general Kitbuqa to hold Syria, and sent envoys to Cairo demanding the surrender of Egypt’s new Mamluk sultan, Qutuz, who had them put to death.

Qutuz marched north into Palestine with his commander Baybars, and on 3 September 1260 (25 Ramadan 658 in the Islamic calendar) the two armies met at Ain Jalut, the ‘Spring of Goliath’, in the valley of Jezreel. The Mamluks lured the Mongol cavalry forward with a feigned retreat and then counter-attacked; Kitbuqa was captured and killed. It was the first great defeat of a Mongol army in the region. Mongol rule west of the Euphrates collapsed, and the Mamluks went on to rule Egypt and Syria for more than 250 years.

Read the full storyHistory & Timeline →Source: Encyclopaedia Iranica: Il-Khanids i. Dynastic history ↗
Cromwell at Dunbar, a painting by Andrew Carrick Gow made in 1886
Cromwell at Dunbar, a painting by Andrew Carrick Gow made in 1886
Image creditAndrew Carrick Gow · Public domainResized and cropped for display.

Cromwell routs the Scots at Dunbar

After the execution of Charles I in January 1649, the Scots, who had first fought against the king, proclaimed his son Charles II as their king. England’s new republic saw this as a direct threat, and in July 1650 Oliver Cromwell led the New Model Army into Scotland. The Scottish commander David Leslie refused to give battle outside Edinburgh, and by the end of August Cromwell’s sick and hungry army had fallen back to the coast at Dunbar, hemmed in by a Scottish force about twice its size.

Leslie moved his army down from the hills to close the trap. Before dawn on 3 September 1650 (by the Old Style calendar then used in Britain), Cromwell attacked first and broke the Scottish lines within about an hour. Some 3,000 Scots were killed and around 10,000 captured, and many of the prisoners died on a forced march south or in captivity at Durham. Southern Scotland fell to English rule. A year later to the day, on 3 September 1651, Cromwell crushed Charles II’s last army at Worcester.

Read the full storyHistory & Timeline →Source: Britannica: Battle of Dunbar ↗
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PEOPLE

Born Today

Abraham Trembley
Image creditUser Magnus Manske on en.wikipedia · Public domainResized and cropped for display.

Abraham Trembley

Genevan naturalist whose experiments on the freshwater hydra, which grew back whole from cut pieces, founded the study of regeneration.

Paul Kane
Image creditPaul Kane · Public domainResized and cropped for display.

Paul Kane

Irish-born Canadian painter who travelled across the North American West in the 1840s, sketching Indigenous peoples and their ways of life.

Louis Sullivan
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Louis Sullivan

American architect of early skyscrapers in Chicago and St Louis, remembered for the maxim ‘form follows function’.

Macfarlane Burnet
Image creditUnknown · Public domainResized and cropped for display.

Macfarlane Burnet

Australian virologist who shared the 1960 Nobel Prize in Physiology or Medicine for discovering acquired immunological tolerance.

Urho Kekkonen
Image creditAnonymousUnknown author / Kuvasiskot studio · CC BY 4.0Resized and cropped for display.

Urho Kekkonen

Finnish statesman who was president for more than 25 years, from 1956 to 1982, steering his country between East and West in the Cold War.

Irene Papas
Image creditABC Television · Public domainResized and cropped for display.

Irene Papas

Greek actress who starred in Zorba the Greek and in film versions of Greek tragedies such as Electra.

Zine El Abidine Ben Ali
Image creditNo mention · CC BY 2.0Resized and cropped for display.

Zine El Abidine Ben Ali

Tunisian president from 1987 whose authoritarian rule ended when a popular uprising forced him out in January 2011, setting off the Arab Spring.

Kiran Desai
Image creditPhibeatrice · CC BY-SA 4.0Resized and cropped for display.

Kiran Desai

Indian-born novelist whose The Inheritance of Loss won the 2006 Booker Prize.

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IDEAS THAT CHANGED THINGS

Firsts, Science & Discoveries

The first colour picture taken by the Viking 2 lander at Utopia Planitia, showing rocks strewn across the plain and part of the spacecraft
The first colour picture taken by the Viking 2 lander at Utopia Planitia, showing rocks strewn across the plain and part of the spacecraft
Image creditNASA/JPL · Public domainResized and cropped for display.

Viking 2 lands on Mars

NASA’s Viking programme sent two identical spacecraft to Mars, each made up of an orbiter and a lander. Viking 1 made the first successful American landing on 20 July 1976. Viking 2 reached Mars orbit in August, and its controllers studied pictures from orbit to choose a safe site far to the north, on the plain of Utopia Planitia, where water ice was more likely and the chances of finding signs of life seemed better.

On 3 September 1976 the lander separated from its orbiter and touched down safely, about 6,500 kilometres from Viking 1. It photographed a rock-strewn plain, measured the weather and later recorded a thin layer of frost on the ground in the Martian winter. Its biology experiments, like Viking 1’s, found puzzling chemical activity in the soil but no convincing evidence of life. The lander worked for nearly four years, until its batteries failed in April 1980.

Read the full storyHistory & Timeline →Source: NASA: Sept. 3, 1976, Viking 2 lands on Mars ↗
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SPORTING HISTORY

Sporting Moments

Malcolm Campbell's Bluebird on Daytona Beach in 1935, months before its record run on the Bonneville Salt Flats
Malcolm Campbell’s Bluebird on Daytona Beach in 1935, months before its record run on the Bonneville Salt Flats
Image creditRichard LeSesne · Public domainResized and cropped for display.

Malcolm Campbell breaks 300 miles an hour

The British racing driver Malcolm Campbell had chased the world land speed record since the 1920s, first on Welsh sands and then on the beach at Daytona in Florida, in a series of cars all named Bluebird after a play by Maurice Maeterlinck. By 1935 his Bluebird had a 2,500-horsepower Rolls-Royce aero engine, but the Daytona sand was too bumpy for the speeds he wanted.

He took the car to the Bonneville Salt Flats in Utah, a vast, flat dry lake bed. On 3 September 1935 he was timed over two runs at an average of just over 301 miles per hour (about 484 km/h), the first time a car had officially passed 300 mph. It was his last land speed record; he turned to water speed records instead. Bonneville became the home of record-breaking for decades, and his son Donald later set records of his own on land and water.

Read the full storyHistory & Timeline →Source: Britannica: Sir Malcolm Campbell ↗
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MUSIC • FILM • BOOKS • CULTURE

Culture Stories

Kungsgatan in Stockholm at 4.50 in the morning of 3 September 1967, as traffic prepares to change to the right-hand side of the road
Kungsgatan in Stockholm at 4.50 in the morning of 3 September 1967, as traffic prepares to change to the right-hand side of the road
Image creditJan Collsiöö · Public domainResized and cropped for display.

Sweden switches to driving on the right

Sweden drove on the left, even though its neighbours drove on the right and most Swedish cars had the steering wheel on the left. In a referendum in 1955 more than four out of five voters rejected a change, but as traffic grew the problem would not go away, and in 1963 the Swedish parliament decided to switch anyway. A four-year publicity campaign followed, with its own logo, a big letter H for ‘höger’, meaning right, printed on everything from milk cartons to underwear.

On Sunday 3 September 1967, the day known as Dagen H, almost all private traffic was banned from the roads in the early hours. At 4.50 a.m. vehicles still moving stopped, crossed carefully to the other side of the road and waited, and at 5 a.m. traffic set off on the right. Thousands of road signs had been changed overnight and buses rebuilt with doors on the other side. Accident numbers actually fell for a time, as drivers took extra care.

Read the full storyHistory & Timeline →Source: Nordiska museet (via DigitaltMuseum): Högertrafikomläggningen, 3 September 1967 ↗
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LIVES REMEMBERED

Remembered Today

Edward Coke
Image creditGilbert Jackson · Public domainResized and cropped for display.

Edward Coke

English judge and lawmaker who defended the common law against royal power and helped draw up the Petition of Right of 1628.

Adolphe Thiers
Image creditNadar · Public domainResized and cropped for display.

Adolphe Thiers

French historian and statesman who crushed the Paris Commune in 1871 and served as the first president of the Third Republic.

Ivan Turgenev
Image creditIlya Repin · Public domainResized and cropped for display.

Ivan Turgenev

Russian novelist and playwright whose Fathers and Sons portrayed the clash between generations in 1860s Russia.

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AROUND THE WORLD

Observances & Anniversaries

Mount Titano in San Marino, with the towers of the republic along its ridge
Mount Titano in San Marino, with the towers of the republic along its ridge
Image creditCommonists · CC BY-SA 4.0Resized and cropped for display.

Feast of Saint Marinus and the founding of San Marino

According to tradition, Marinus was a Christian stonemason from the island of Rab, on the Dalmatian coast, who fled persecution under the emperor Diocletian and founded a small community on Mount Titano, near Rimini. The Republic of San Marino traces its foundation to him in the year 301, which makes it, by its own reckoning, the oldest surviving republic in the world; the date comes from tradition rather than records of the time.

Every 3 September the republic marks the feast of its patron saint and founder and the anniversary of its foundation. The day brings a solemn Mass in the Basilica of Saint Marinus, a procession with the saint’s relics, a historical parade and a great crossbow tournament held by the republic’s crossbowmen.

Source: Visit San Marino (official tourist board): Feast of Saint Marinus and Foundation of the Republic Day ↗
HISTORY & TIMELINE

Finished the highlights?

Follow 3 September chronologically, from the Middle Ages to the modern day, with 14 verified events and the sources behind them.

This day through time →