About August 12
August 12, 2025 is the 224th day of the year 2025 in the Gregorian calendar. There are 141 days remaining until the end of this year. The day of the week is Tuesday.
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Leo is the sun sign of a person born on this day. Peridot is the modern birthstone for this month. Diamond is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 189 days remaining before the start of the next Chinese New Year.
August 12: More About This Day
It is the peak of the Perseid meteor shower. It is also known as the “Glorious Twelfth” in the UK, as it marks the traditional start of the grouse shooting season.
What Happened On August 12
- 30 BC –Cleopatra VII Philopator, the last ruler of the Egyptian Ptolemaic dynasty, commits suicide, allegedly by means of an asp bite.
- 1121 –Battle of Didgori: the Georgian army under King David the Builder wins a decisive victory over the famous Seljuk commander Ilghazi.
- 1164 –Battle of Harim: Nur ad-Din Zangi defeats the Crusader armies of the County of Tripoli and the Principality of Antioch.
- 1323 –Signature of the Treaty of Nöteborg between Sweden and Novgorod (Russia), that regulates the border between the two countries for the first time.
- 1480 –Battle of Otranto: Ottoman troops behead 800 Christians for refusing to convert to Islam.
- 1624 –The president of Louis XIII of France’s royal council is arrested, leaving Cardinal Richelieu in the role of the King’s principal minister.
- 1851 –Isaac Singer is granted a patent for his sewing machine.
- 1877 –Asaph Hall discovers the Mars moon Deimos.
- 1883 –The last quagga dies at the Artis Magistra zoo in Amsterdam.
- 1898 –An Armistice ends the Spanish-American War.
- 1898 –The Hawaiian flag is lowered from Iolani 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 Hawai`i to the United States.
- 1914 –World War I: the United Kingdom declares war on Austria-Hungary; the countries of the British Empire follow suit.
- 1944 –Waffen SS troops massacre 560 people in Sant'Anna di Stazzema.
- 1953 –Nuclear weapons testing: the Soviet atomic bomb project continues with the detonation of Joe 4, the first Soviet thermonuclear weapon.
- 1960 –Echo 1A, NASA’s first successful communications satellite, is launched.
- 1964 –South Africa is banned from the Olympic Games due to the country’s racist policies.
- 1977 –The first free flight of the Space Shuttle Enterprise.
- 1982 –Mexico announces it is unable to pay its enormous external debt, marking the beginning of a debt crisis that spreads to all of Latin America and the Third World.
- 1992 –Canada, Mexico and the United States announce completion of negotiations for the North American Free Trade Agreement (NAFTA).
- 1994 –Major League Baseball players go on strike. This will force the cancellation of the 1994 World Series.
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