About May 21
May 21, 2025 is the 141st day of the year 2025 in the Gregorian calendar. There are 224 days remaining until the end of this year. The day of the week is Wednesday.
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Taurus is the sun sign of a person born on this day. Emerald is the modern birthstone for this month. Sapphire is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 272 days remaining before the start of the next Chinese New Year.
What Happened On May 21
- 293 –Roman Emperors Diocletian and Maximian appoint Galerius as Caesar to Diocletian, beginning the period of four rulers known as the Tetrarchy.
- 1349 –Dušan’s Code, the constitution of the Serbian Empire, is enacted by Dušan the Mighty.
- 1554 –A royal Charter is granted to Derby School as a grammar school for boys in Derby, England, by Queen Mary I.
- 1809 –The first day of the Battle of Aspern-Essling between the Austrian army led by Archduke Charles and the French army led by Napoleon I of France sees the French attack across the Danube held.
- 1851 –Slavery is abolished in Colombia, South America.
- 1863 –American Civil War: The Union Army succeeds in closing off the last escape route from Port Hudson, Louisiana, in preparation for the coming siege.
- 1917 –The Great Atlanta fire of 1917.
- 1927 –Charles Lindbergh touches down at Le Bourget Field in Paris, completing the world’s first solo nonstop flight across the Atlantic Ocean.
- 1937 –A Soviet station becomes the first scientific research settlement to operate on the drift ice of the Arctic Ocean.
- 1961 –American civil rights movement: Alabama Governor John Malcolm Patterson declares martial law in an attempt to restore order after race riots break out.
- 1966 –The Ulster Volunteer Force declares war on the Irish Republican Army in Northern Ireland.
- 1969 –Civil unrest in Rosario, Argentina, known as Rosariazo, following the death of a 15-year-old student.
- 1981 –Irish Republican hunger strikers Raymond McCreesh and Patsy O’Hara die on hunger strike in Maze prison.
- 1990 –Democratic Republic of Yemen and North Yemen agree to merge into the Republic of Yemen.
- 1991 –Mengistu Haile Mariam, president of the People’s Democratic Republic of Ethiopia, flees Ethiopia, effectively bringing the Ethiopian Civil War to an end.
- 1994 –The Democratic Republic of Yemen unsuccessful attempts to secede from Republic of Yemen; a war breaks out.
- 1996 –The MV Bukoba sinks in Tanzanian waters on Lake Victoria, killing nearly 1,000.
- 1996 –The Trappist Martyrs of Atlas are executed.
- 2005 –The tallest roller coaster in the world, Kingda Ka opens at Six Flags Great Adventure.
- 2006 –The Republic of Montenegro holds a referendum proposing independence from the State Union of Serbia and Montenegro. The Montenegrin people choose independence with a majority of 55%.
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