About August 17

August 17, 2025 is the 229th day of the year 2025 in the Gregorian calendar. There are 136 days remaining until the end of this year. The day of the week is Sunday.

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 184 days remaining before the start of the next Chinese New Year.

What Happened On August 17

  • 986
    A Byzantine army is destroyed in the pass of Trajan’s Gate by the Bulgarians under the Comitopuli Samuel and Aron. The Byzantine emperor Basil II narrowly escaped.
  • 1807
    Robert Fulton’s North River Steamboat leaves New York City for Albany, New York on the Hudson River, inaugurating the first commercial steamboat service in the world.
  • 1863
    American Civil War: In Charleston, South Carolina, Union batteries and ships bombard Confederate-held Fort Sumter.
  • 1883
    The first public performance of the Dominican Republic’s national anthem, Himno Nacional.
  • 1914
    World War I: Battle of Stalluponen – The German army of General Hermann von François defeats the Russian force commanded by Pavel Rennenkampf near modern-day Nesterov, Russia.
  • 1918
    Bolshevik revolutionary leader Moisei Uritsky is assassinated.
  • 1942
    World War II: U.S. Marines raid the Japanese-held Pacific island of Makin (Butaritari).
  • 1943
    World War II: The Royal Air Force begins Operation Hydra, the first air raid of the Operation Crossbow strategic bombing campaign against Germany’s V-weapon programme.
  • 1943
    World War II: The U.S. Seventh Army under General George S. Patton arrives in Messina, Italy, followed several hours later by the British 8th Army under Field Marshal Bernard L. Montgomery, thus completing the Allied conquest of Sicily.
  • 1945
    Sukarno and Mohammad Hatta proclaim the independence of Indonesia, igniting the Indonesian National Revolution against the Dutch Empire.
  • 1950
    Hill 303 massacre: American POWs were massacred by North Korean Army.
  • 1953
    Addiction: First meeting of Narcotics Anonymous in Southern California.
  • 1959
    Quake Lake is formed by the magnitude 7.5 1959 Yellowstone earthquake near Hebgen Lake in Montana.
  • 1960
    Decolonization: Gabon gains independence from France.
  • 1962
    East German border guards kill 18-year-old Peter Fechter as he attempts to cross the Berlin Wall into West Berlin becoming one of the first victims of the wall.
  • 1969
    Category 5 Hurricane Camille hits the Mississippi coast, killing 248 people and causing $1.5 billion in damage.
  • 1979
    Two Soviet Aeroflot jetliners collide in mid-air over Ukraine, killing 156.
  • 1980
    Azaria Chamberlain disappears, probably taken by a dingo, leading to what was then the most publicised trial in Australian history.
  • 1988
    Pakistani President Muhammad Zia-ul-Haq and U.S. Ambassador Arnold Raphel are killed in a plane crash.
  • 2005
    The first forced evacuation of settlers, as part of the Israel unilateral disengagement plan, starts.

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