What are the important events that happened on September 21? Here are historical events, facts, and some myths about this day.

September 21: Facts & Myths About This Day

September 21 is the 264^th day of the year 2025 in the Gregorian calendar. There are 101 days remaining until the end of this year. The day of the week is Sunday.

Under the Julian calendar, this day is September 8, 2025 – a Sunday. Both day of the week are the same but did you notice the difference with the Gregorian calendar?

When this day started, 1,758,412,800 seconds has elapsed since midnight of January 1, 1970 – the Unix epoch.

Strange as it may, if we name this day after a polygon then it will be called ‘dihectahexacontatetragon’ day.

Virgo is the zodiac sign of a person born on this day. Sapphire is the modern birthstone for this month. Agate is the mystical birthstone from Tibetan origin that dates back over a thousand years.

According to the lunisolar Chinese calendar, there are 149 days remaining before the start of the next Chinese New Year.

The ancient Maya civilization believes that the end of the world will happen on December 21, 2012. There are now 4,657 days since this fabled cataclysmic event.

September 21 Historical Events

• 1435 –
  An agreement between Charles VII of France and Philip the Good ends the partnership between the English and Burgundy in Hundred Years’ War.
• 1823 –
  Joseph Smith is reportedly visited by the angel Moroni, who told him the location of gold plates, which Smith obtained four years later and partially translated into The Book of Mormon.
• 1860 –
  In the Second Opium War, an Anglo-French force defeats Chinese troops at the Battle of Palikao.
• 1898 –
  Empress Dowager Cixi seizes power and ends the Hundred Days’ Reform in China.
• 1921 –
  A storage silo in Oppau, Germany, explodes, killing 500-600 people.
• 1942 –
  In Dunaivtsi, Ukraine, Nazis murder 2,588 Jews.
• 1942 –
  In Poland, at the end of Yom Kippur, Germans order Jews to permanently evacuate Konstantynów and move to the Ghetto in Biała Podlaska, established to assemble Jews from seven nearby towns, including Janów Podlaski, Rossosz and Terespol.
• 1964 –
  The North American XB-70 Valkyrie, the world’s first Mach 3 bomber, makes its maiden flight from Palmdale, California.
• 1976 –
  Seychelles joins the United Nations.
• 2003 –
  Galileo mission is terminated by sending the probe into Jupiter’s atmosphere, where it is crushed by the pressure at the lower altitudes.

Who were born on September 21?

• 1909 –
  Kwame Nkrumah, Ghanaian statesman (d. 1972)
• 1918 –
  Karl Slover, German-born American actor
• 1929 –
  Shafi Hadi, American jazz tenor and alto saxophonist
• 1936 –
  Yuriy Luzhkov, Russian politician, mayor of Moscow
• 1941 –
  R. James Woolsey, Jr., American Central Intelligence Agency director
• 1958 –
  Bruno Fitoussi, French poker player
• 1965 –
  Frédéric Beigbeder, French writer and critic
• 1980 –
  Robert Hoffman, American actor
• 1985 –
  Justin Durant, American football player
• 1987 –
  Ashley Paris, American basketball player

Who died on September 21?

• 1217 –
  Lembitu of Lehola, Estonian military leader
• 1626 –
  François de Bonne, duc de Lesdiguières, Constable of France (b. 1543)
• 1743 –
  Jai Singh II, King of Amber-Juiper (b. 1688)
• 1938 –
  Ivana Brlic-Mazuranic, Croatian writer (b. 1874)
• 1946 –
  Olga Engl, Austrian actress (b. 1871)
• 1954 –
  Kokichi Mikimoto, Japanese inventor (b. 1858)
• 1972 –
  Henry de Montherlant, French writer (b. 1896)
• 1974 –
  Jacqueline Susann, American novelist (b. 1918)
• 1990 –
  Takis Kanellopoulos, Greek film director and screenwriter (b. 1933)
• 1997 –
  Jennifer Holt, American actress (b. 1920)