On This Day — 12 August
2000s
2021
Six people, five victims and the perpetrator are killed in Keyham, Plymouth in the worst mass shooting in the UK since 2010.
Plymouth
2018
Thirty-nine civilians, including a dozen children, are killed in an explosion at a weapons depot in Sarmada, Syria.
Sarmada
2017
The Unite the Right rally occurs in Charlottesville, Virginia, leading to the deaths of 3 and injuring nearly 50 more.
Unite the Right rally
2016
Syrian civil war: The Syrian Democratic Forces (SDF) capture the city of Manbij from the Islamic State of Iraq and the Levant (ISIL).
Syrian civil war
2015
At least two massive explosions kill 173 people and injure nearly 800 more in Tianjin, China.
2015 Tianjin explosions
2000
The Russian Navy submarine Kursk explodes and sinks in the Barents Sea during a military exercise, killing her entire 118-man crew.
Russian Navy
1900s
1994
Major League Baseball players go on strike, eventually forcing the cancellation of the 1994 World Series.
Major League Baseball
1992
Canada, Mexico and the United States announce completion of negotiations for the North American Free Trade Agreement (NAFTA).
North American Free Trade Agreement
1990
Sue, the largest and most complete Tyrannosaurus rex skeleton found to date, is discovered by Sue Hendrickson in South Dakota.
Sue (dinosaur)
1985
Japan Air Lines Flight 123, a Boeing 747, crashes into Osutaka ridge in Gunma Prefecture, Japan, killing 520, becoming the worst single-plane air disaster.
Japan Air Lines Flight 123
1984
An infamous brawl takes place at the Atlanta-Fulton County Stadium between the Atlanta Braves and San Diego Padres.
1984 Braves–Padres bean brawl
1981
The IBM Personal Computer is released.
IBM Personal Computer
1977
The first free flight of the Space Shuttle Enterprise.
Approach and Landing Tests
1977
The Sri Lanka Riots: Targeting the minority Sri Lankan Tamils, begin, less than a month after the United National Party came to power. Over 300 Tamils are killed.
1977 anti-Tamil pogrom
1976
Between 1,000 and 3,500 Palestinians are killed in the Tel al-Zaatar massacre, one of the bloodiest events of the Lebanese Civil War.
Palestinians
1969
Violence erupts after the Apprentice Boys of Derry march in Derry, Northern Ireland, resulting in a three-day communal riot known as the Battle of the Bogside.
Apprentice Boys of Derry
1964
South Africa is banned from the Olympic Games due to the country's racist policies.
South Africa
1960
Echo 1A, NASA's first successful communications satellite, is launched.
Project Echo
1953
Thermonuclear bomb testing: The Soviet atomic bomb project continues with the detonation of "RDS-6s" (Joe 4) using a "layered" scheme.
Nuclear weapons testing
1953
The 7.2 Ms  Ionian earthquake shakes the southern Ionian Islands with a maximum Mercalli intensity of X (Extreme). Between 445 and 800 people are killed.
1953 Ionian earthquake
1952
The Night of the Murdered Poets: Thirteen prominent Jewish intellectuals are murdered in Moscow, Russia, Soviet Union.
Night of the Murdered Poets
1950
Korean War: Bloody Gulch massacre: Seventy-five American POWs are massacred by the North Korean Army.
Korean War
1948
Between 15 and 150 unarmed members of the Khudai Khidmatgar movement are killed by Pakistani police.
Babrra massacre
1944
Waffen-SS troops massacre 560 people in Sant'Anna di Stazzema.
Waffen-SS
1944
Nazi German troops end the week-long Wola massacre, during which time at least 40,000 people are killed indiscriminately or in mass executions.
Nazi Germany
1944
Alençon is liberated by General Philippe Leclerc de Hauteclocque, the first city in France to be liberated from the Nazis by French forces.
Alençon
1914
World War I: France, the United Kingdom and the British Empire declare war on Austria-Hungary.
World War I
1914
World War I: The Battle of Halen a.k.a. Battle of the Silver Helmets a clash between large Belgian and German cavalry formations at Halen, Belgium.
Battle of Halen
1800s
1898
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.
Flag of Hawaii
1883
The last quagga dies at the Natura Artis Magistra, a zoo in Amsterdam, Netherlands.
Quagga
1865
Joseph Lister, British surgeon and scientist, performs the first antiseptic surgery.
Joseph Lister
1851
Isaac Singer is granted a patent for his sewing machine.
Isaac Singer
1831
French intervention forces William I of the Netherlands to abandon his attempt to suppress the Belgian Revolution.
William I of the Netherlands
1806
Santiago de Liniers, 1st Count of Buenos Aires re-takes the city of Buenos Aires, Argentina after the first British invasion.
Santiago de Liniers, 1st Count of Buenos Aires
Before 1800
1793
The Rhône and Loire départments are created when the former département of Rhône-et-Loire is split into two.
RhĂ´ne (department)
1788
The Anjala conspiracy is signed.
Anjala League
1765
Treaty of Allahabad is signed. The Treaty marks the political and constitutional involvement and the beginning of Company rule in India.
Treaty of Allahabad
1687
Battle of Mohács: Charles of Lorraine defeats the Ottoman Empire.
Battle of Mohács (1687)
1676
Praying Indian John Alderman shoots and kills Metacomet, the Wampanoag war chief, ending King Philip's War.
Praying Indian
1624
Charles de La Vieuville is arrested and replaced by Cardinal Richelieu as the French king's chief advisor.
Charles de La Vieuville
1499
First engagement of the Battle of Zonchio between Venetian and Ottoman fleets.
Battle of Zonchio
1492
Christopher Columbus arrives in the Canary Islands on his first voyage to the New World.
Christopher Columbus
1323
The Treaty of Nöteborg between Sweden and Novgorod Republic is signed, regulating the border between the two countries for the first time.
Treaty of Nöteborg
1164
Battle of Harim: Nur ad-Din Zangi defeats the Crusader armies of the County of Tripoli and the Principality of Antioch.
Battle of Harim
1121
Battle of Didgori: The Georgian army under King David IV wins a decisive victory over the famous Seljuk commander Ilghazi.
Battle of Didgori
1099
First Crusade: Battle of Ascalon Crusaders under the command of Godfrey of Bouillon defeat Fatimid forces led by Al-Afdal Shahanshah. This is considered the last engagement of the First Crusade.
First Crusade