About September 23

September 23, 2023 is the 266th day of the year 2023 in the Gregorian calendar. There are 99 days remaining until the end of this year. The day of the week is Saturday.

You can browse the full year calendar in case you need it.

My Birthday Ninja Is this your birthday? Are you not curious to learn who shares your special day? Find out the September 23 famous birthdays and expand your knowledge today. (Sponsored link)

Virgo is the sun 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 140 days remaining before the start of the next Chinese New Year.

September 23: More About This Day

It is frequently the day of the Autumnal Equinox in the Northern Hemisphere and the day of the Vernal Equinox in the Southern Hemisphere.

What Happened On September 23

  • 1122
    Pope Calixtus II and Holy Roman Emperor Henry V agree to the Concordat of Worms to put an end to the Investiture Controversy.
  • 1459
    Battle of Blore Heath, the first major battle of the English Wars of the Roses, is fought at Blore Heath in Staffordshire.
  • 1803
    Second Anglo-Maratha War: Battle of Assaye between the British East India Company and the Maratha Empire in India.
  • 1806
    Lewis and Clark return to St. Louis after exploring the Pacific Northwest of the United States.
  • 1821
    Tripolitsa, Greece, falls and 30,000 Turks are massacred during the Greek War of Independence.
  • 1845
    The Knickerbockers Baseball Club, the first baseball team to play under the modern rules, is founded in New York.
  • 1846
    Neptune is discovered by French astronomer Urbain Jean Joseph Le Verrier and British astronomer John Couch Adams; the discovery is verified by German astronomer Johann Gottfried Galle.
  • 1857
    The Russian warship Lefort capsizes and sinks during a storm in the Gulf of Finland, killing all 826 aboard.
  • 1905
    Norway and Sweden sign the “Karlstad treaty”, peacefully dissolving the Union between the two countries.
  • 1908
    University of Alberta in Alberta, Canada, is founded.
  • 1909
    The Phantom of the Opera (original title: Le Fantôme de l'Opéra), a novel by French writer Gaston Leroux, is first published as a serialization in Le Gaulois.
  • 1932
    The Kingdom of Hejaz and Nejd is renamed the Kingdom of Saudi Arabia.
  • 1936
    First ascent of Siniolchu by a German team.
  • 1938
    Mobilization of the Czechoslovak army in response to the Munich Crisis.
  • 1952
    Richard Nixon makes his “Checkers speech”.
  • 1959
    Iowa farmer and corn breeder Roswell Garst hosts Soviet premier Nikita Khrushchev.
  • 1969
    The Chicago Eight trial opens in Chicago.
  • 1983
    Saint Kitts and Nevis joins the United Nations.
  • 1999
    NASA announces that it has lost contact with the Mars Climate Orbiter.
  • 2002
    The first public version of the web browser Mozilla Firefox (“Phoenix 0.1”) is released.

Coffee Love Do you drink coffee? Did you know that coffee and word games are an excellent combination to sharpen your vocabulary? Try this! Within 30 seconds, how many words can you think of from these letters IEFSGPECBUE? Check your answers here: Words with these letters IEFSGPECBUE. (Sponsored by WordFinder.Cafe)



Share or Link to This Page: