UK story
Santiago de Liniers, 1st Count of Buenos Aires re-takes the city of Buenos Aires, Argentina after the first British invasion.
125 things happened on 12 August, from 30 BC to 2021. UK stories come first, then the rest of the world.
UK history first: stories from England, Scotland, Wales and Northern Ireland.
UK story
Santiago de Liniers, 1st Count of Buenos Aires re-takes the city of Buenos Aires, Argentina after the first British invasion.
UK story
Joseph Lister, British surgeon and scientist, performs the first antiseptic surgery.
UK story
World War I: France, the United Kingdom and the British Empire declare war on Austria-Hungary.
Crusades: Fatimid forces under al-Afdal Shahanshah began retreating to Egypt after the Battle of Ascalon, concluding the First Crusade.
Battle of Didgori: The Georgian army under King David IV wins a decisive victory over the famous Seljuk commander Ilghazi.
Battle of Harim: Nur ad-Din Zangi defeats the Crusader armies of the County of Tripoli and the Principality of Antioch.
The Republic of Venice acquires the right to Crete from Boniface I of Montferrat.
Sweden and the Novgorod Republic signed the Treaty of Nöteborg, resulting in a hiatus in the Swedish–Novgorodian Wars.
Andronikos IV Palaiologos enters Constantinople by force and captures his father, emperor John V Palaiologos, and his younger brothers during the Byzantine civil war of 1373–1379.
Christopher Columbus arrives in the Canary Islands on his first voyage to the New World.
First engagement of the Battle of Zonchio between Venetian and Ottoman fleets.
Battle of Mohács: Charles of Lorraine defeats the Ottoman Empire.
Treaty of Allahabad is signed. The Treaty marks the political and constitutional involvement and the beginning of Company rule in India.
The Anjala conspiracy is signed.
The Rhône and Loire départments are created when the former département of Rhône-et-Loire is split into two.
French intervention forces William I of the Netherlands to abandon his attempt to suppress the Belgian Revolution.
Isaac Singer is granted a patent for his sewing machine.
Franco-American children as young as seven years old began striking against Cabot Mill in Brunswick, Maine, shutting down operations for three days.
The Hawaiian flag is lowered from ʻIolani Palace in an elaborate annexation ceremony and replaced with the flag of the United States to signify the transfer of sovereignty from the Republic of Hawaii to the United States where it is formally recognized as Hawaii.
World War I: Belgian troops won a victory at the Battle of Halen, but were ultimately unable to stop the German invasion of Belgium.
Echo 1A, NASA's first successful communications satellite, is launched.
South Africa is banned from the Olympic Games due to the country's racist policies.
The first free flight of the Space Shuttle Enterprise.
The IBM Personal Computer is released.
An infamous brawl takes place at the Atlanta-Fulton County Stadium between the Atlanta Braves and San Diego Padres.
Near Faith, South Dakota, American paleontologist Sue Hendrickson found one of the most complete Tyrannosaurus rex skeletons, nicknamed Sue (pictured).
Canada, Mexico and the United States announce completion of negotiations for the North American Free Trade Agreement (NAFTA).
Major League Baseball players go on strike, eventually forcing the cancellation of the 1994 World Series.
Syrian civil war: The Syrian Democratic Forces (SDF) capture the city of Manbij from the Islamic State of Iraq and the Levant (ISIL).
The state-owned Taedonggang Brewing Company inaugurated the first beer festival in North Korea.
Every answer is somewhere on this page. Have a go, then check!
In which year did this happen: “World War I: France, the United Kingdom and the British Empire declare war on”?
C: 1914. 1914 — that’s 112 years ago. Find it on the page
In which year did this happen: “Joseph Lister, British surgeon and scientist, performs the first antiseptic”?
B: 1865. 1865 — that’s 161 years ago. Find it on the page
Which of these happened first?
A: Santiago de Liniers, 1st Count of Buenos Aires re-takes the city of Buenos. 1806: Santiago de Liniers, 1st Count of Buenos Aires re-takes the city of Buenos · 1914: World War I: France, the United Kingdom and the British Empire declare war on · 1865: Joseph Lister, British surgeon and scientist, performs the first antiseptic Find it on the page
“George IV” happened in 1762. How many years ago was that?
B: 264 years. 2026 − 1762 = 264. Find it on the page
Famous people whose birthday is 12 August.
Well-known people who died on 12 August.
Festivals, holidays and saints’ days celebrated on 12 August somewhere in the world.
Content note: these entries mention things like war, violence, deaths, disasters or crime. They are part of history, but they can be upsetting. Grown-ups and teachers: you may want to read them first. They come straight from Wikipedia and have not been rewritten for children.
Stories with a heading have been written for young readers by A Day in the Past, using the linked articles as sources. Other entries show text from Wikipedia’s “August 12” page and its “On this day” feed, written by Wikipedia contributors and shared under the Creative Commons Attribution-ShareAlike 4.0 licence. Each “Read more” link goes to the article an entry is based on. Photos are credited under each picture. Spotted a mistake? Please tell us.