HISTORY & TIMELINE
31 July

A journey through
31 July in history

The story of 31 July runs from Columbus sighting three hills off Trinidad in 1498 to the British Army ending its long deployment in Northern Ireland in 2007. In between come the Treaty of Breda, the opening of the menagerie at Schönbrunn, the wreck of a Spanish silver fleet off Florida, the first United States patent, the return of Hawaii’s independence, the first city in New Zealand, the Weimar Constitution, the first ascent of K2, Ranger 7’s close-ups of the Moon, the Royal Navy’s last tot of rum, the START I treaty and Michael Phelps’s 19th Olympic medal.

II
THE MIDDLE AGES

Medieval History

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

1498
The Columbus monument at Moruga on the south coast of Trinidad, where local tradition says his men came ashore in 1498The Columbus monument at Moruga on the south coast of Trinidad, where local tradition says his men came ashore in 1498Image: Kalamazadkhan · CC BY-SA 4.0
world · Americas

Columbus sights three hills and names Trinidad

Christopher Columbus set out on his third voyage to the Americas from Sanlúcar de Barrameda in southern Spain on 30 May 1498 with six ships. He sent three straight to Hispaniola and took the other three further south than before, hoping to find new lands near the equator. He had placed the voyage under the protection of the Holy Trinity and vowed to name the first land he saw after it. After weeks becalmed in the heat, with water running short, the crews were growing desperate. On 31 July 1498 a sailor at the masthead saw three hills rising from the sea, and Columbus named the island La Trinidad. Over the next days his ships ran along its south coast, a party went ashore for water, and the fleet passed into the Gulf of Paria, from where Columbus saw the coast of the South American mainland, although at first he took it for another island. Trinidad was then home to Arawak- and Carib-speaking peoples; Spain did not settle it until 1592, and Britain took it in 1797.

Source: Library of Congress: Descriptive account of the island of Trinidad ↗
III
A CHANGING WORLD

Early Modern Era

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

1667
The peace congress at Breda in 1667, in an engraving by Romeyn de HoogheThe peace congress at Breda in 1667, in an engraving by Romeyn de HoogheImage: Romeyn de Hooghe · Public domain
politics · Europe

The Treaty of Breda ends the Second Anglo-Dutch War

England and the Dutch Republic fought their second war over trade and colonies from 1665, and it ended badly for England after a Dutch fleet raided the Medway in June 1667 and towed away the flagship Royal Charles. On 31 July 1667 peace was signed at Breda, together with treaties involving France and Denmark. Each side kept what it held: England kept New Netherland, whose New Amsterdam had become New York, and the Dutch kept Suriname in South America.

Source: Britannica: Treaty of Breda ↗
1715
A Florida historical marker at the site of the survivors' and salvagers' camp of the 1715 fleet, on Orchid IslandA Florida historical marker at the site of the survivors’ and salvagers’ camp of the 1715 fleet, on Orchid IslandImage: Leonard J. DeFrancisci · CC BY-SA 3.0
world · Americas

A hurricane wrecks Spain’s silver fleet off Florida

A Spanish fleet of 12 ships left Havana late in July 1715, carrying silver coins, gold and other goods from the Americas to Spain. Early on 31 July a hurricane caught it off the east coast of Florida. Eleven ships were lost, most of them driven onto the reefs between present-day Fort Pierce and Vero Beach, and about 1,000 of the 2,500 people aboard died, including the commander, Juan Esteban de Ubilla. Coins from the wrecks still wash up on what is now called the Treasure Coast.

Source: National Park Service: The Spanish treasure fleets of 1715 and 1733 ↗
1752
The Kaiserpavillon, the imperial breakfast pavilion at the centre of the Schönbrunn menagerie in ViennaThe Kaiserpavillon, the imperial breakfast pavilion at the centre of the Schönbrunn menagerie in ViennaImage: Paul Korecky · CC BY-SA 2.0
culture · Europe

The imperial menagerie at Schönbrunn opens in Vienna

Francis Stephen of Lorraine, the Holy Roman Emperor and husband of Empress Maria Theresa, was a keen naturalist, and in the early 1750s he had a menagerie built in the gardens of Schönbrunn, the Habsburgs’ summer palace outside Vienna. The architect Jean Nicolas Jadot laid it out as a ring of enclosures around a central pavilion, so that the imperial family could watch the animals while they took breakfast. The menagerie opened to the court on 31 July 1752. At first only the imperial family and their guests could visit, but from 1779 respectable members of the public were let in. Its baroque pavilion still stands at the heart of the site, and Schönbrunn Zoo is the oldest zoo in the world still in operation.

Source: Schönbrunn Palace: The zoo ↗
1790
The first United States patent, granted to Samuel Hopkins on 31 July 1790 and signed by George WashingtonThe first United States patent, granted to Samuel Hopkins on 31 July 1790 and signed by George WashingtonImage: US Patent Office · Public domain
science · Americas

The United States grants its first patent

The US Constitution gave Congress the power to protect inventions, and the first Patent Act was passed in April 1790. On 31 July 1790 the first patent under it went to Samuel Hopkins, a Philadelphia Quaker, for an improved way of making potash and pearl ash, made from wood ashes and used in soap, glass, fertiliser and baking. It was signed by President George Washington, Attorney General Edmund Randolph and Secretary of State Thomas Jefferson.

Source: USPTO: Milestones in US patenting ↗
IV
THE NINETEENTH CENTURY

The 1800s

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

1843
Rear Admiral Richard Thomas, the British commander who handed Hawaii back to Kamehameha III in 1843Rear Admiral Richard Thomas, the British commander who handed Hawaii back to Kamehameha III in 1843Image: Unidentified painter · Public domain
politics · Oceania

A British admiral hands Hawaii back to its king

In February 1843 Lord George Paulet, a captain in the Royal Navy, sailed into Honolulu in HMS Carysfort to back the claims of the British consul Richard Charlton, who was locked in a dispute over land. Under the threat of the ship’s guns, King Kamehameha III gave way and ceded his islands to Britain under protest, while sending envoys to London to appeal. For five months the Hawaiian flag was replaced by the British one. Paulet had acted without orders. His commander in the Pacific, Rear Admiral Richard Thomas, sailed to Honolulu and on 31 July 1843, at a ceremony on the plain now called Thomas Square in his honour, restored the kingdom’s government and raised the Hawaiian flag again. At a service of thanksgiving at Kawaiahaʻo Church later that day the king is said to have spoken the words ‘Ua mau ke ea o ka ʻāina i ka pono’, ‘the life of the land is perpetuated in righteousness’, which became the kingdom’s motto and, in 1959, the motto of the state of Hawaii.

Source: Hawaii State Legislature: HB2475 (2022), La Hoihoi Ea ↗
1856
ChristChurch Cathedral in the 1880s, the church at the heart of the cityChristChurch Cathedral in the 1880s, the church at the heart of the cityImage: Photographer unidentified · Public domain
world · Oceania

Christchurch becomes New Zealand’s first city

Christchurch was founded in 1850 by the Canterbury Association, which planned it as a Church of England settlement on the Canterbury Plains of the South Island. Under British practice a town that became the seat of a bishop could be made a city, and after Henry Harper was appointed its first bishop, Christchurch was declared a city by royal charter on 31 July 1856. That makes it the oldest city in New Zealand, two years ahead of Nelson.

Source: Christchurch City Libraries: Early Christchurch, a brief history ↗
V
THE TWENTIETH CENTURY

The 1900s

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

1919
The German National Theatre in Weimar, where the National Assembly met in 1919, with the Goethe and Schiller monument in front, photographed in 1952The German National Theatre in Weimar, where the National Assembly met in 1919, with the Goethe and Schiller monument in front, photographed in 1952Image: Unknown photographer (German Federal Archive, Bild 183-15436-0010) · CC BY-SA 3.0 de
politics · Europe

Germany’s National Assembly adopts the Weimar Constitution

After defeat in the First World War and the abdication of Kaiser Wilhelm II in November 1918, Germany held elections in January 1919 for a National Assembly to write a new constitution; for the first time women could vote and stand. Berlin was in turmoil after the Spartacist uprising, so the assembly met in the quiet town of Weimar, in its National Theatre, a town associated with Goethe and Schiller rather than with Prussian militarism. The draft, largely the work of the liberal lawyer Hugo Preuss, made Germany a parliamentary republic with an elected president, proportional representation and a long list of basic rights. On 31 July 1919 the assembly adopted it by 262 votes to 75. President Friedrich Ebert signed it on 11 August and it came into force three days later. It was Germany’s first democratic constitution, but its emergency powers under Article 48 were later used to undermine the republic, which collapsed when Hitler took power in 1933.

Source: Deutscher Bundestag: 31 July 1919, Weimar Reich constitution adopted ↗
1954
Achille Compagnoni and Lino Lacedelli, the first climbers to reach the summit of K2, in 1954Achille Compagnoni and Lino Lacedelli, the first climbers to reach the summit of K2, in 1954Image: Uncredited (Centro Documentazione, Museo Nazionale della Montagna) · Public domain
world · Asia

Two Italian climbers reach the summit of K2

K2, at 8,611 metres, is the second-highest mountain on Earth, rising in the Karakoram range on the border between Pakistan and China. It is steeper, colder and more exposed to storms than Everest, and American expeditions in 1938, 1939 and 1953 had all been turned back. In 1954 the Italian geologist Ardito Desio led a huge national expedition, with Italian climbers, scientists and Hunza high-altitude porters from what is now northern Pakistan, up the Abruzzi Spur. On 31 July 1954, after weeks of bad weather, Achille Compagnoni and Lino Lacedelli reached the top at about 6 p.m., their oxygen having run out below the summit. The night before, Walter Bonatti and the Hunza porter Amir Mahdi had carried oxygen up to them but, unable to find their tent, were forced to spend the night in the open above 8,000 metres; Mahdi lost his toes to frostbite. The first ascent made the climbers national heroes, but arguments over that night went on for half a century.

Source: American Alpine Club Publications: Ascent of K2 ↗
1964
The first picture of the Moon taken by a US spacecraft, sent back by Ranger 7 on 31 July 1964The first picture of the Moon taken by a US spacecraft, sent back by Ranger 7 on 31 July 1964Image: NASA · Public domain
science · Americas

Ranger 7 sends back the first close-up pictures of the Moon

Before anyone could land on the Moon, NASA needed to know what its surface was like: hard rock, crumbly crust or deep dust. The Ranger probes were designed to fly straight into it, taking television pictures all the way down. The first six all failed, the last of them, Ranger 6, reaching the Moon in February 1964 with its cameras dead. Ranger 7 was launched on 28 July 1964, and on 31 July, in the last 17 minutes before it crashed, its six cameras sent back 4,308 pictures. The last, taken just over two seconds before impact, showed details less than a metre across, up to a thousand times sharper than anything seen through telescopes on Earth. They showed craters of every size, even on the smooth plains, and the area where it struck was named Mare Cognitum, ‘the Sea that has become Known’.

Source: NASA: 60 years ago, Ranger 7 photographs the Moon ↗
1970
The rum tub of the destroyer HMS Cavalier, lettered 'The Queen, God Bless Her', from which sailors' tots were servedThe rum tub of the destroyer HMS Cavalier, lettered ‘The Queen, God Bless Her’, from which sailors’ tots were servedImage: Hammersfan · CC BY-SA 3.0
culture · Europe

Black Tot Day: the Royal Navy serves its last rum ration

For about 300 years British sailors were given a daily ration of rum, by then an eighth of a pint served at midday. The Admiralty decided that drink at lunchtime did not mix with modern weapons and navigation, and after a debate in the House of Commons early in 1970 the tot was abolished. The last one was served on 31 July 1970, known as Black Tot Day; some crews held mock funerals, and a fund was set up for sailors in compensation.

Source: Royal Museums Greenwich: A rum deal, the origins of Nelson’s blood ↗
1991
George H. W. Bush and Mikhail Gorbachev sign the START treaty in Moscow in 1991George H. W. Bush and Mikhail Gorbachev sign the START treaty in Moscow in 1991Image: Susan Biddle · Public domain
politics · Europe

Bush and Gorbachev sign the START I treaty in Moscow

Earlier arms treaties between the United States and the Soviet Union had only put ceilings on the growth of their nuclear arsenals. Talks on actually cutting strategic weapons, the long-range missiles and bombers that could strike each other’s homeland, began in 1982 and dragged on for nearly a decade, until the thaw at the end of the Cold War made agreement possible. On 31 July 1991, at a summit in Moscow, Presidents George H. W. Bush and Mikhail Gorbachev signed the Strategic Arms Reduction Treaty. Each side was limited to 1,600 missiles and bombers carrying no more than 6,000 warheads, cuts of roughly a third, backed by detailed inspections. Within months the Soviet Union had broken up, and the treaty only came into force in December 1994, after Ukraine, Belarus and Kazakhstan agreed to give up the nuclear weapons left on their soil. It expired in 2009.

Source: Nuclear Threat Initiative: START I ↗
VI
2000 TO TODAY

Modern Day

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

2007
A British Army Land Rover on a street in south Belfast in 1981A British Army Land Rover on a street in south Belfast in 1981Image: Jeanne boleyn (English Wikipedia user) · Public domain
world · Europe

The British Army’s Operation Banner in Northern Ireland ends

British troops were sent onto the streets of Northern Ireland in August 1969 as the Troubles broke out, under the name Operation Banner. After the Good Friday Agreement of 1998 and the IRA’s announcement in 2005 that its armed campaign was over, the government said the operation would close, and it ended on 31 July 2007. Lasting almost 38 years, it was the longest continuous deployment in British military history; more than 300,000 service personnel had served in it.

Source: UK Parliament, Defence Committee: Investigations into fatalities in Northern Ireland involving British military personnel ↗
2012
The pool of the London Aquatics Centre in the Olympic Park, where Michael Phelps won his record 19th medalThe pool of the London Aquatics Centre in the Olympic Park, where Michael Phelps won his record 19th medalImage: Frank Steiner · CC BY 2.0
sport · Europe

Michael Phelps becomes the most decorated Olympian

The Soviet gymnast Larisa Latynina won 18 Olympic medals between 1956 and 1964, a record that stood for almost half a century. The American swimmer Michael Phelps came to the London Olympics with 16, after six gold medals in Athens in 2004 and a record eight in Beijing in 2008. On the evening of 31 July 2012 Phelps was beaten by a fingertip by Chad le Clos of South Africa in the 200 metres butterfly, but the silver equalled Latynina’s total. Less than an hour later he swam the last leg of the 4 x 200 metres freestyle relay for the United States, bringing home gold and his 19th medal. He finished his career in 2016 with 28.

Source: Olympics.com: Phelps wins record 19th Olympic medal ↗
RESEARCH

Sources & Further Reading

Selected authoritative references supporting the events on this page.

Library of Congress: Descriptive account of the island of Trinidad↗Britannica: Christopher Columbus, the second and third voyages↗Wikipedia: History of Trinidad and Tobago↗Britannica: Treaty of Breda↗Wikipedia: Treaty of Breda (1667)↗National Park Service: The Spanish treasure fleets of 1715 and 1733↗NOAA Atlantic Oceanographic and Meteorological Laboratory: 300th anniversary of the Spanish silver fleet’s encounter with a hurricane↗Schönbrunn Palace: The zoo↗Wikipedia: Schönbrunn Zoo↗USPTO: Milestones in US patenting↗Library of Congress, In Custodia Legis: Birthday of the first US patent↗Hawaii State Legislature: HB2475 (2022), La Hoihoi Ea↗Hawaii State Archives: The Charlton land claim↗Wikipedia: Paulet affair↗Christchurch City Libraries: Early Christchurch, a brief history↗Christchurch City Council Newsline: Citizenship ceremony to mark Christchurch’s 160th anniversary↗Deutscher Bundestag: 31 July 1919, Weimar Reich constitution adopted↗Britannica: Weimar Constitution↗American Alpine Club Publications: Ascent of K2↗Britannica: K2↗Wikipedia: 1954 Italian expedition to K2↗NASA: 60 years ago, Ranger 7 photographs the Moon↗NASA Jet Propulsion Laboratory: Ranger 7↗Royal Museums Greenwich: A rum deal, the origins of Nelson’s blood↗Hansard: Royal Navy (rum ration), 28 January 1970↗Nuclear Threat Initiative: START I↗Britannica: Strategic Arms Reduction Talks↗UK Parliament, Defence Committee: Investigations into fatalities in Northern Ireland involving British military personnel↗National Army Museum: The Troubles↗Olympics.com: Phelps wins record 19th Olympic medal↗Wikipedia: Michael Phelps↗
WHY THESE MOMENTS?

Significance before volume

This page is not the longest possible list of events. It is a chronological journey through 31 July, 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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