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.

You can browse the full year calendar in case you need it.

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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.
  • 1164
    Battle of Harim: Nur ad-Din Zangi defeats the Crusader armies of the County of Tripoli and the Principality of Antioch.
  • 1480
    Battle of Otranto: Ottoman troops behead 800 Christians for refusing to convert to Islam.
  • 1499
    First engagement of the Battle of Zonchio between Venetian and Ottoman fleets.
  • 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.
  • 1687
    Battle of Mohács: Charles of Lorraine defeats the Ottomans.
  • 1793
    The Rhône and Loire (Lêre) départments are created when the former département of Rhône-et-Loire is split into two.
  • 1877
    Asaph Hall discovers the Mars moon Deimos.
  • 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
    Alençon is liberated by General Leclerc, the first city in France to be liberated from the Nazis by French forces.
  • 1952
    The Night of the Murdered Poets: 13 prominent Jewish intellectuals are murdered in Moscow.
  • 1960
    Echo 1A, NASA’s first successful communications satellite, is launched.
  • 1964
    Charlie Wilson, one of the Great Train Robbers, escapes from Winson Green Prison in Birmingham, England.
  • 1964
    South Africa is banned from the Olympic Games due to the country’s racist policies.
  • 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.
  • 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
  • 1977
    The first free flight of the Space Shuttle Enterprise.
  • 1981
    The IBM Personal Computer is released.
  • 1985
    Japan Airlines Flight 123 crashes into Osutaka ridge in Gunma Prefecture, Japan, killing 520, to become the worst single-plane air disaster.

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