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.
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 180 days remaining before the start of the next Chinese New Year.
What Happened On August 21
- 1331 –King Stephen Uroš III, after months of anarchy, surrenders to his son and rival Stephen Dušan, who succeeds as King of Serbia.
- 1689 –The Battle of Dunkeld in Scotland.
- 1770 –James Cook formally claims eastern Australia for Great Britain, naming it New South Wales.
- 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.
- 1810 –Jean-Baptiste Bernadotte, Marshal of France, is elected Crown Prince of Sweden by the Swedish Riksdag of the Estates.
- 1831 –Nat Turner leads black slaves and free blacks in a rebellion.
- 1852 –Tlingit Indians destroy Fort Selkirk, Yukon Territory.
- 1863 –Lawrence, Kansas is destroyed by Confederate guerrillas Quantrill’s Raiders in the Lawrence Massacre.
- 1888 –The first successful adding machine in the United States is patented by William Seward Burroughs.
- 1911 –The Mona Lisa is stolen by a Louvre employee.
- 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.
- 1963 –Xa Loi Pagoda raids: the Army of the Republic of Vietnam Special Forces loyal to Ngo Dinh Nhu, brother of President Ngo Dinh Diem, vandalises Buddhist pagodas across the country, arresting thousands and leaving an estimated hundreds dead.
- 1968 –James Anderson, Jr. posthumously receives the first Medal of Honor to be awarded to an African American U.S. Marine.
- 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.
- 1979 –Soviet dancer Alexander Godunov defects to the United States.
- 1983 –Philippine opposition leader Benigno Aquino, Jr. is assassinated at the Manila International Airport (now renamed Ninoy Aquino International Airport).
- 1991 –Latvia declares renewal of its full independence after the occupation of Soviet Union.
- 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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