Are you asking the question “What day of the week was I born?” Continue reading to find out what day of the week you were born.
Day Of The Week: 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 2025. The day of the week is Thursday.
If you are into daily horoscope then Leo is your zodiac sign. Peridot is your modern birthstone. Diamond is your mystical birthstone from Tibetan origin that dates back over a thousand years.
Historical Events: 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.
- 1778 –American Revolutionary War: British forces begin besieging the French outpost at Pondicherry.
- 1808 –Battle of Vimeiro: British and Portuguese forces led by General Arthur Wellesley defeat French force under Major-General Jean-Andoche Junot near the village of Vimeiro, Portugal, the first Anglo-Portuguese victory of the Peninsular War.
- 1821 –Jarvis Island is discovered by the crew of the ship, Eliza Frances.
- 1918 –World War I: The Second Battle of the Somme begins.
- 1945 –Physicist Harry K. Daghlian, Jr. is fatally irradiated in a criticality incident during an experiment with the Demon core at Los Alamos National Laboratory.
- 1961 –Motown releases what would be its first #1 hit, “Please Mr. Postman” by The Marvelettes.
- 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.
- 1979 –Soviet dancer Alexander Godunov defects to the United States.
Who were born on August 21?
- 1918 –Billy Reay, Canadian ice hockey player (d. 2004)
- 1929 –Marie Severin, American comic book artist and colorist
- 1940 –Endre Szemerédi, Hungarian mathematician
- 1961 –David Morales, American disc jockey
- 1967 –Carrie-Anne Moss, Canadian actress
- 1967 –Serj Tankian, Armenian-born singer (System of a Down)
- 1970 –Erik Dekker, Dutch cyclist
- 1973 –Sergey Brin, Co-founder of Google
- 1981 –Cameron Winklevoss, American Rower and Entrepeneur
- 1992 –Brad Kavanagh, English songwriter and actor
Are you looking for a day of the week calculator? Try it on any date like anniversaries, birthday of someone you know, or any other date that is special to you. You can even try it on historical dates. For example: August 21
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