HISTORY & TIMELINE
1 December

A journey through
1 December in history

From the Lisbon uprising of 1640 to the handshake beneath the Channel in 1990, 1 December has seen crowns claimed, empires ended and new states born on four continents. This timeline follows the date across more than three and a half centuries.

JUMP THROUGH TIME
III
A CHANGING WORLD

Early Modern Era

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

1640
John, Duke of Braganza, about 1630, from the workshop of Peter Paul Rubens. Ten years later he became King John IV.John, Duke of Braganza, about 1630, from the workshop of Peter Paul Rubens. Ten years later he became King John IV.Image: Workshop of Peter Paul Rubens · Public domain
politics · Europe

Portugal breaks free of Spain

On 1 December 1640 a group of Portuguese nobles rose in Lisbon, overthrew the government that ruled in the name of Philip IV of Spain and offered the crown to the Duke of Braganza. Portugal had shared its king with Spain since 1580, and resentment had grown as Madrid drew on Portuguese men and money for its wars. The moment was well chosen: Spain was fighting France and facing a revolt in Catalonia. The duke was proclaimed King John IV and enthroned on 15 December, founding the House of Braganza. Spain did not accept the loss until 1668. Portugal still keeps 1 December as Restoration of Independence Day.

Source: Encyclopaedia Britannica: John IV, king of Portugal ↗
IV
THE NINETEENTH CENTURY

The 1800s

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

1822
The coronation of Pedro I, painted by Jean-Baptiste Debret in 1828.The coronation of Pedro I, painted by Jean-Baptiste Debret in 1828.Image: Jean-Baptiste Debret · Public domain
politics · Americas

Pedro I is crowned Emperor of Brazil

Less than three months after declaring Brazil independent of Portugal, Pedro, the son of the Portuguese king, was crowned Brazil’s first emperor on 1 December 1822 in the imperial chapel in Rio de Janeiro. On the same day he created the Imperial Order of the Southern Cross. He reigned until 1831.

Source: Encyclopaedia Britannica: Pedro I ↗
1834
The Slave Lodge in Cape Town, where enslaved people were once held, now a museum.The Slave Lodge in Cape Town, where enslaved people were once held, now a museum.Image: HelenOnline · CC BY-SA 4.0
politics · Africa

Slavery is abolished at the Cape

Britain’s Slavery Abolition Act came into force across most of the empire on 1 August 1834, but at the Cape Colony it took effect four months later, on 1 December 1834. The enslaved were not yet fully free: they had to work on for their former owners as unpaid ‘apprentices’ for four more years, and many regard 1 December 1838 as the true day of emancipation.

Source: South African History Online: Slavery abolished in the Cape ↗
V
THE TWENTIETH CENTURY

The 1900s

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

1913
Inside one of the Belgian-built La Brugeoise carriages of Line A, photographed in 2008.Inside one of the Belgian-built La Brugeoise carriages of Line A, photographed in 2008.Image: https://www.flickr.com/people/lrargerich/ · CC BY 2.0
world · Americas

Latin America’s first underground railway opens

On 1 December 1913 Buenos Aires opened the first stretch of its underground, today’s Line A, running from Plaza de Mayo to Plaza Miserere. It was the first metro in Latin America and the southern hemisphere, built in 26 months by the Anglo-Argentine Tramway Company. Its Belgian-made wooden carriages stayed in service for almost a century.

Source: Government of Argentina: 1 de diciembre, inauguración del primer subterráneo de Buenos Aires ↗
1948
The former Bellavista barracks in San José, now the entrance to the National Museum of Costa Rica.The former Bellavista barracks in San José, now the entrance to the National Museum of Costa Rica.Image: Fespinozalemistre · CC BY-SA 4.0
politics · Americas

Costa Rica gives up its army

On 1 December 1948, months after a short civil war, José Figueres Ferrer, the head of Costa Rica’s ruling junta, struck a wall of the Bellavista barracks in San José with a mallet to mark the end of the country’s army. The abolition was confirmed in law in 1949 and written into the new constitution that year. Costa Rica has had no army since, spending instead on education and health. The old barracks became the National Museum, and the documents of the abolition are now on UNESCO’s Memory of the World register.

Source: Museo Nacional de Costa Rica: Abolition of the army ↗
1955
Rosa Parks with the civil rights leader E. D. Nixon, dated 5 December 1955.Rosa Parks with the civil rights leader E. D. Nixon, dated 5 December 1955.Image: Associated Press · Public domain
politics · Americas

Rosa Parks keeps her seat

On the evening of 1 December 1955 Rosa Parks, a 42-year-old seamstress, was riding home from work on a city bus in Montgomery, Alabama. When the driver told her and three other Black passengers to give up their row to white riders, she refused. She was arrested for breaking the city’s segregation law and released on bail that night by E. D. Nixon. Her arrest set off the Montgomery bus boycott, which began on 5 December and lasted 381 days, with a young minister, Martin Luther King Jr., as its leader. It ended after the United States Supreme Court ruled that segregation on the city’s buses was unconstitutional.

Source: US National Archives: An act of courage, the arrest records of Rosa Parks ↗
1959
Antarctica, assembled from NASA's Blue Marble satellite imagery.Antarctica, assembled from NASA’s Blue Marble satellite imagery.Image: Dave Pape · Public domain
world · Global

Antarctica is set aside for peace and science

On 1 December 1959, at the height of the Cold War, twelve countries signed the Antarctic Treaty in Washington. They were the nations whose scientists had worked on and around the continent during the International Geophysical Year of 1957-58, among them the United States and the Soviet Union. The treaty bans military bases, manoeuvres and weapons tests in Antarctica, as well as nuclear explosions and the dumping of radioactive waste, and guarantees freedom of scientific research. It came into force in 1961, and many more countries have joined it since.

Source: Secretariat of the Antarctic Treaty: The Antarctic Treaty ↗
1963
Kohima, the capital of Nagaland, in 2008.Kohima, the capital of Nagaland, in 2008.Image: Sharada Prasad CS · CC BY 2.0
politics · Asia

Nagaland becomes India’s sixteenth state

Nagaland, in India’s hilly north-east, was inaugurated as the country’s sixteenth state on 1 December 1963. It grew out of the 16-point agreement of 1960 between the Indian government and the Naga People’s Convention, and the State of Nagaland Act passed by Parliament in 1962. The day is kept as Nagaland Statehood Day.

Source: Government of Nagaland: Nagaland profile ↗
1973
Michael Somare in 1973, the year Papua New Guinea became self-governing.Michael Somare in 1973, the year Papua New Guinea became self-governing.Image: Unknown · CC0
politics · Oceania

Papua New Guinea governs itself

Papua New Guinea, administered by Australia, became self-governing on 1 December 1973, with Michael Somare, who had led a coalition government since the 1972 election, as chief minister. Full independence followed on 16 September 1975, and Somare became the country’s first prime minister.

Source: National Archives of Australia: Independence of Papua New Guinea ↗
1990
One of the tunnel boring machines on show at the Channel Tunnel Exhibition Centre, Folkestone, in 1992.One of the tunnel boring machines on show at the Channel Tunnel Exhibition Centre, Folkestone, in 1992.Image: Ben Brooksbank · CC BY-SA 2.0
science · Europe

Britain and France meet under the sea

At 12.12 pm on 1 December 1990 the British and French crews digging the Channel Tunnel’s service tunnel broke through to each other, 22.3 km out from England and 15.6 km from France. Graham Fagg and Philippe Cozette shook hands through the gap, the first land link between Britain and the Continent since the last ice age. The two halves met almost exactly on line after years of boring through chalk marl from each coast. The tunnel opened to traffic in 1994.

Source: Getlink (Channel Tunnel operator): First historic breakthrough under the Channel ↗
1991
The ballot paper for the all-Ukrainian referendum, asking voters to confirm the Act of Declaration of Independence.The ballot paper for the all-Ukrainian referendum, asking voters to confirm the Act of Declaration of Independence.Image: Верховна Рада України · Public domain
politics · Europe

Ukraine votes for independence

On 1 December 1991 the people of Ukraine were asked whether they supported the declaration of independence adopted by their parliament on 24 August. About 84 per cent of voters took part, and more than 90 per cent of them said yes, with majorities in every region. On the same day Leonid Kravchuk was elected the country’s first president. The vote made it clear that the second-largest Soviet republic would not stay in the union, and within weeks the Soviet Union itself was dissolved.

Source: Encyclopaedia Britannica: History of Ukraine, independent Ukraine ↗
RESEARCH

Sources & Further Reading

Selected authoritative references supporting the events on this page.

Encyclopaedia Britannica: John IV, king of Portugal↗Arquivo Nacional Torre do Tombo: A Restauração da Independência de 1 de dezembro de 1640↗Encyclopaedia Britannica: Pedro I↗Library of Congress: Debret’s lithograph of the coronation of Pedro I, 1 December 1822↗South African History Online: Slavery abolished in the Cape↗Iziko Museums of South Africa: The end of enslavement↗Government of Argentina: 1 de diciembre, inauguración del primer subterráneo de Buenos Aires↗Emova (Buenos Aires underground operator): Vivir el Subte, 110 aniversario↗Museo Nacional de Costa Rica: Abolition of the army↗UNESCO Memory of the World: Abolition of the army in Costa Rica↗US National Archives: An act of courage, the arrest records of Rosa Parks↗Stanford University, King Institute: Rosa Parks arrested in Montgomery and released on bail↗Secretariat of the Antarctic Treaty: The Antarctic Treaty↗US Department of State: Antarctic Treaty, done at Washington December 1, 1959↗Government of Nagaland: Nagaland profile↗Press Information Bureau, Government of India: Nagaland Statehood Day↗National Archives of Australia: Independence of Papua New Guinea↗Encyclopaedia Britannica: Sir Michael Somare↗Getlink (Channel Tunnel operator): First historic breakthrough under the Channel↗Institution of Civil Engineers: How was the Channel Tunnel built?↗Encyclopaedia Britannica: History of Ukraine, independent Ukraine↗Wilson Center: 25 years of independence, the Ukrainian referendum↗
WHY THESE MOMENTS?

Significance before volume

This page is not the longest possible list of events. It is a chronological journey through 1 December, 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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