Something to think about.Something to discover.Something to remember.Every day.
⌕ My Time Capsule
HISTORY & TIMELINE
25 August

A journey through
25 August in history

The story of 25 August runs from the murder of the Roman emperor Gratian at Lyon in 383 to Voyager 1’s crossing into interstellar space in 2012. In between come Galileo’s presentation of his telescope to the Venetian Senate, the Great Moon Hoax in the New York Sun, Uruguay’s declaration of independence, the founding of the US National Park Service, the Anglo-Soviet invasion of Iran, the liberation of Paris, the abdication of Vietnam’s last emperor, the launch of the first instant noodles, the opening of the Rome Olympics, Voyager 2’s flyby of Neptune and Linus Torvalds’s first announcement of Linux.

Begin the Timeline ↓ ← Back to Explore This Day
JUMP THROUGH TIME
I
EARLIEST RECORDS

Ancient & Early History

The earliest worthwhile records and events connected with this date.

383
A marble head of the young Gratian, late 4th centuryA marble head of the young Gratian, late 4th centuryImage: Gabe the Pianist · CC BY-SA 4.0
politics · Europe

The Roman emperor Gratian is killed at Lyon

Gratian had been made co-emperor by his father Valentinian I as a boy of eight and ruled the western half of the Roman Empire from 375. A devout Christian guided by Bishop Ambrose of Milan, he removed the Altar of Victory from the Senate house in Rome. In 383 the army in Britain proclaimed its commander Magnus Maximus emperor; when Maximus crossed into Gaul, Gratian’s troops deserted him, and he fled south, only to be killed at Lugdunum, modern Lyon, on 25 August 383, aged 24.

Source: Britannica: Gratian ↗
III
A CHANGING WORLD

Early Modern Era

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

1609
Galileo shows the Doge of Venice how to use the telescope, in a 19th-century fresco by Giuseppe BertiniGalileo shows the Doge of Venice how to use the telescope, in a 19th-century fresco by Giuseppe BertiniImage: Giuseppe Bertini · Public domain
science · Europe

Galileo shows his telescope to the rulers of Venice

In 1609 Galileo Galilei was a mathematics professor at the University of Padua, in the territory of the Republic of Venice, and short of money. That summer he heard that a Dutch spectacle-maker had made a tube that made distant things look near. Working out the principle for himself, he ground his own lenses and built an instrument that magnified about eight or nine times, far better than the toys being sold in European markets. His friend Paolo Sarpi arranged for him to show it to the Venetian authorities. Senators climbed the bell tower of St Mark’s to see ships far out at sea hours before they could be seen with the naked eye, and the presentation of the telescope to the Senate is usually dated 25 August 1609, although accounts of the exact days differ. The grateful Senate doubled Galileo’s salary and gave him his post for life. Within months he had turned a better telescope on the sky and seen mountains on the Moon and the moons of Jupiter.

Source: Scientific American: 400 years ago, Galileo’s telescope was ready for prime time ↗
IV
THE NINETEENTH CENTURY

The 1800s

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

1825
The Oath of the Thirty-Three Orientals, Juan Manuel Blanes's painting of the exiles who began the rising in April 1825The Oath of the Thirty-Three Orientals, Juan Manuel Blanes’s painting of the exiles who began the rising in April 1825Image: Juan Manuel Blanes · Public domain
politics · Americas

Uruguay’s patriots declare independence from Brazil

The land on the east bank of the Uruguay River, known as the Banda Oriental, had been fought over by Spain and Portugal for more than a century. After Spanish rule ended, Portuguese and then Brazilian troops occupied it, and in 1821 it was annexed as the Cisplatine Province. In April 1825 a small band of exiles led by Juan Antonio Lavalleja, remembered as the Thirty-Three Orientals, crossed the river from Buenos Aires and raised the countryside against Brazilian rule. On 25 August 1825 an assembly of representatives meeting in the town of Florida declared all acts joining the province to Brazil null and void, voted to unite it with the United Provinces of the Río de la Plata, and adopted a flag of its own. The declaration led to war between Brazil and the United Provinces; in 1828, with British mediation, both sides agreed to recognise an independent Uruguay instead. 25 August is still celebrated as the country’s Independence Day.

Source: Uruguay, Ministry of Education and Culture: 25 de Agosto de 1825, Declaratoria de la Independencia ↗
1835
Lunar animals and other objects supposedly discovered by Sir John Herschel, a print made on the back of the Sun's moon storiesLunar animals and other objects supposedly discovered by Sir John Herschel, a print made on the back of the Sun’s moon storiesImage: Benjamin Henry Day · Public domain
culture · Americas

The New York Sun announces life on the Moon

The New York Sun was one of the new ‘penny papers’, sold cheaply on the streets to a mass readership. On 25 August 1835 it began a series of articles said to be reprinted from an Edinburgh scientific journal, reporting that the famous British astronomer Sir John Herschel, then observing from the Cape of Good Hope, had used an enormous new telescope to see the surface of the Moon in astonishing detail. Over six instalments readers learned of lunar forests and seas, herds of small bison, blue goats with a single horn, beavers that walked on two legs and, at last, winged people resembling bats. None of it was true: Herschel knew nothing of the articles, which were most likely written by the Sun journalist Richard Adams Locke. Sales soared, the story was reprinted across America and Europe, and the ‘Great Moon Hoax’ is still remembered as one of the most successful newspaper fakes.

Source: The Lost Museum Archive, City University of New York: ‘Great Astronomical Discoveries’, New-York Sun, 1835 ↗
V
THE TWENTIETH CENTURY

The 1900s

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

1916
The National Park Service Organic Act signed by President Woodrow Wilson on 25 August 1916The National Park Service Organic Act signed by President Woodrow Wilson on 25 August 1916Image: National Archives · Public domain
world · Americas

The United States creates its National Park Service

By 1916 the United States had more than 30 national parks and monuments, from Yellowstone to Yosemite, but no single body to run them, and some were poorly protected. On 25 August 1916 President Woodrow Wilson signed the Organic Act creating the National Park Service within the Department of the Interior, charged with conserving the parks’ scenery, wildlife and historic objects while leaving them unimpaired for future generations to enjoy. The businessman and campaigner Stephen Mather became its first director.

Source: US National Park Service: Quick history of the National Park Service ↗
1941
Soviet tank crews of the 6th Armoured Division drive a T-26 tank through the streets of Tabriz in 1941Soviet tank crews of the 6th Armoured Division drive a T-26 tank through the streets of Tabriz in 1941Image: Unknown author · Public domain
world · Middle East

British and Soviet troops invade Iran

When Germany invaded the Soviet Union in June 1941, Britain and the Soviets became allies, and neutral Iran suddenly mattered to both. Its oil fields and the great refinery at Abadan supplied Britain’s forces, and its new Trans-Iranian Railway offered a way to send war supplies from the Persian Gulf to the Soviet Union. The two powers demanded that Reza Shah expel most of the Germans living in the country, and were not satisfied with his answers. On 25 August 1941 Soviet forces crossed into Iran from the north while British and Indian troops advanced from Iraq and the Gulf to seize the oil fields. Iran’s army could not hold out, and within days the government asked for a ceasefire. Reza Shah was forced to abdicate in favour of his son Mohammad Reza on 16 September, and the occupied country became the ‘Persian Corridor’, through which millions of tons of Allied supplies reached the Soviet Union.

Source: Encyclopaedia Iranica: Anglo-Iranian relations, Pahlavi period ↗
1944
Armoured vehicles of Leclerc's division fighting in front of the Opéra in Paris on 25 August 1944Armoured vehicles of Leclerc’s division fighting in front of the Opéra in Paris on 25 August 1944Image: National Museum of the U.S. Navy · Public domain
world · Europe

Paris is liberated after four years of German occupation

German troops had marched into Paris in June 1940, and for four years the city lived under curfews, rationing, arrests and deportations. After the Allied landings in Normandy in June 1944 the German front in France collapsed, and on 19 August the Paris Resistance rose against the garrison. The Allied commander Dwight Eisenhower had planned to bypass the city, but with fighting in the streets he agreed that the Free French 2nd Armoured Division of General Philippe Leclerc should go in first, followed by the US 4th Infantry Division. Leclerc’s tanks reached the centre on the morning of 25 August 1944. The German commander, General Dietrich von Choltitz, had not carried out Hitler’s order to leave the city in ruins, and that afternoon he signed the surrender of the garrison. In the evening Charles de Gaulle spoke at the Hôtel de Ville of a Paris broken and martyred, but liberated by its own people with the help of France, and the next day he led a victory march down the Champs-Élysées before huge crowds.

Source: The National WWII Museum: The Liberation of Paris ↗
1945
The Ngọ Môn or Meridian Gate of the imperial city in Huế, where Bảo Đại read his abdicationThe Ngọ Môn or Meridian Gate of the imperial city in Huế, where Bảo Đại read his abdicationImage: Supanut Arunoprayote · CC BY 4.0
politics · Asia

Vietnam’s last emperor, Bảo Đại, gives up the throne

After Japan’s surrender in August 1945, the Communist-led Việt Minh seized power across Vietnam in what became known as the August Revolution. Emperor Bảo Đại, the last ruler of the Nguyễn dynasty that had reigned from Huế since 1802, agreed to abdicate; Vietnamese accounts date his abdication edict to 25 August 1945, and he read it in public at the Ngọ Môn gate of the imperial city on 30 August, handing over the royal seal and sword. On 2 September Hồ Chí Minh declared Vietnam’s independence in Hanoi.

Source: Nhân Dân: The event of King Bảo Đại’s abdication ↗
1958
A reconstruction of Momofuku Ando's backyard workshop at the CupNoodles Museum in IkedaA reconstruction of Momofuku Ando’s backyard workshop at the CupNoodles Museum in IkedaImage: Mr.ちゅらさん (Commons user) · CC BY-SA 4.0
culture · Asia

Momofuku Ando launches the first instant noodles

In post-war Japan the businessman Momofuku Ando set out to make noodles that anyone could prepare at home in moments. Working alone for a year in a shed behind his house in Ikeda, near Osaka, he found that flash-frying seasoned noodles in hot oil dried them and left them full of tiny holes, so they softened quickly in hot water. His Chicken Ramen went on sale on 25 August 1958, ready to eat two minutes after adding boiling water, and in 1971 his company followed it with Cup Noodles.

Source: Nissin Foods: Our founder, Momofuku Ando ↗
1960
Abebe Bikila runs barefoot ahead of Rhadi Ben Abdesselam near the end of the marathon at the 1960 Rome OlympicsAbebe Bikila runs barefoot ahead of Rhadi Ben Abdesselam near the end of the marathon at the 1960 Rome OlympicsImage: Unknown photographer (ANSA) · Public domain
sport · Europe

The Rome Olympics open among the city’s ancient ruins

Rome had been chosen to host the Olympic Games in 1908 but had to give them up after the eruption of Vesuvius in 1906. Half a century later it finally staged them, and on 25 August 1960 President Giovanni Gronchi opened the Games of the XVII Olympiad at the Stadio Olimpico. The organisers set events among the monuments of the ancient city: wrestling in the Basilica of Maxentius, gymnastics at the Baths of Caracalla and a marathon that finished at night by the Arch of Constantine. They were the first Olympic Games to be fully covered by television, and they produced some of the most famous moments in Olympic history. The Ethiopian Abebe Bikila won the marathon running barefoot, the first Olympic champion from sub-Saharan Africa; Wilma Rudolph of the United States won three sprint golds; and an 18-year-old boxer from Louisville, Cassius Clay, later known as Muhammad Ali, won the light-heavyweight title.

Source: Britannica: Rome 1960 Olympic Games ↗
1989
Neptune in an enhanced-colour picture made from Voyager 2's last whole-planet images, showing the Great Dark SpotNeptune in an enhanced-colour picture made from Voyager 2’s last whole-planet images, showing the Great Dark SpotImage: NASA · Public domain
science · Global

Voyager 2 sweeps past Neptune

Twelve years after its launch, and after visits to Jupiter, Saturn and Uranus, NASA’s Voyager 2 reached the last stop on its grand tour of the giant planets. Neptune, almost 4.5 billion kilometres from the Sun, had been seen only as a blurred blue disc through telescopes, and radio signals from the spacecraft now took about four hours to reach Earth. On 25 August 1989 Voyager 2 passed about 4,950 kilometres above Neptune’s north pole, the closest it came to any planet on its journey, and a few hours later it flew by the large moon Triton. It found a huge storm, the Great Dark Spot, winds faster than on any other planet, a set of thin rings and six new moons, and saw dark plumes rising from Triton’s frozen surface. No spacecraft has been back to Neptune since.

Source: NASA: 30 years ago, Voyager 2’s historic Neptune flyby ↗
1991
Floppy disks of Linux version 0.12, copied for distribution in Australia in the early days of the systemFloppy disks of Linux version 0.12, copied for distribution in Australia in the early days of the systemImage: Shermozle · CC BY-SA 3.0
science · Europe

Linus Torvalds announces the system that became Linux

Linus Torvalds was a 21-year-old computer science student at the University of Helsinki when, on 25 August 1991, he posted a message to the Usenet group for users of the teaching system Minix, saying he was writing a free operating system for PCs that was ‘just a hobby’. He released the first version, 0.01, in September and later made it free software under the GNU licence. Built on by thousands of volunteers and companies, Linux now runs most of the world’s servers and supercomputers and lies at the heart of Android phones.

Source: Loyola University Chicago, Computer Science: History of Linux ↗
VI
2000 TO TODAY

Modern Day

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

2012
NASA artist's concept of solar system distances, marking where Voyager 1 entered interstellar spaceNASA artist’s concept of solar system distances, marking where Voyager 1 entered interstellar spaceImage: NASA / JPL-Caltech · Public domain
science · Global

Voyager 1 crosses into interstellar space

Launched in 1977, Voyager 1 flew past Jupiter and Saturn and then headed out of the solar system. Around 25 August 2012, some 122 times as far from the Sun as Earth is, it passed through the heliopause, the boundary where the Sun’s wind of charged particles gives way to the gas between the stars, becoming the first human-made object in interstellar space. Because one of its instruments had failed long before, scientists could only confirm the crossing in 2013, from measurements of the surrounding plasma.

Source: NASA Science: Voyager, interstellar mission ↗
RESEARCH

Sources & Further Reading

Selected authoritative references supporting the events on this page.

WHY THESE MOMENTS?

Significance before volume

This page is not the longest possible list of events. It is a chronological journey through 25 August, 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 25 August

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

Explore This Day →
← PREVIOUS DAY24 August
HISTORY & TIMELINE25 August
NEXT DAY →26 August