About August 21
August 21, 2025 is the 233rd day of the year 2025 in the Gregorian calendar. There are 132 days remaining until the end of this year. The day of the week is Thursday.
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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 180 days remaining before the start of the next Chinese New Year.
What Happened On August 21
- 1689 –The Battle of Dunkeld in Scotland.
- 1772 –King Gustav III completes his coup d'état by adopting a new Constitution, ending half a century of parliamentary rule in Sweden and installing himself as an enlightened despot.
- 1778 –American Revolutionary War: British forces begin besieging the French outpost at Pondicherry.
- 1810 –Jean-Baptiste Bernadotte, Marshal of France, is elected Crown Prince of Sweden by the Swedish Riksdag of the Estates.
- 1852 –Tlingit Indians destroy Fort Selkirk, Yukon Territory.
- 1863 –Lawrence, Kansas is destroyed by Confederate guerrillas Quantrill’s Raiders in the Lawrence Massacre.
- 1879 –The Virgin Mary, along with St. Joseph and St. John the Evangelist, reportedly appears at Knock Shrine in Knock, County Mayo, Ireland.
- 1918 –World War I: The Second Battle of the Somme begins.
- 1942 –World War II: a Nazi flag is installed atop the Mount Elbrus.
- 1942 –World War II: the Guadalcanal campaign: American forces defeat an attack by Imperial Japanese Army soldiers in the Battle of the Tenaru.
- 1944 –Dumbarton Oaks Conference, prelude to the United Nations, begins.
- 1944 –World War II: Canadian and Polish units capture the strategically important town of Falaise, France.
- 1961 –Motown releases what would be its first #1 hit, “Please Mr. Postman” by The Marvelettes.
- 1968 –Soviet Union-dominated Warsaw Pact troops invade Czechoslovakia, crushing the Prague Spring; on the same day, Nicolae Ceauşescu, leader of Communist Romania, publicly condemns the Soviet maneuver, encouraging the Romanian population to arm itself against possible Soviet reprisals.
- 1971 –A bomb exploded in the Liberal Party campaign rally in Plaza Miranda, Manila, Philippines with several anti-Marcos political candidates injured.
- 1976 –Operation Paul Bunyan at Panmunjeom, Korea.
- 1986 –Carbon dioxide gas erupts from volcanic Lake Nyos in Cameroon, killing up to 1,800 people within a 20-kilometer range.
- 1992 –Ruby Ridge Standoff in Idaho
- 2001 –NATO decides to send a peace-keeping force to the former Yugoslav Republic of Macedonia.
- 2001 –The Red Cross announces that a famine is striking Tajikistan, and calls for international financial aid for Tajikistan and Uzbekistan.
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