About September 17

September 17, 2024 is the 261st day of the year 2024 in the Gregorian calendar. There are 105 days remaining until the end of this year. The day of the week is Tuesday.

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

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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 134 days remaining before the start of the next Chinese New Year.

What Happened On September 17

  • 1111
    Highest Galician nobility led by Pedro Fróilaz de Traba and the bishop Diego Gelmírez crown Alfonso VII as “King of Galicia”.
  • 1176
    The Battle of Myriokephalon is fought.
  • 1630
    The city of Boston, Massachusetts is founded.
  • 1683
    Antonie van Leeuwenhoek writes a letter to the Royal Society describing “animalcules”: the first known description of protozoa.
  • 1776
    The Presidio of San Francisco is founded in New Spain.
  • 1849
    American abolitionist Harriet Tubman escapes from slavery.
  • 1859
    Joshua A. Norton declares himself “Emperor Norton I” of the United States.
  • 1894
    The Battle of Yalu River, the largest naval engagement of the First Sino-Japanese War.
  • 1908
    The Wright Flyer flown by Orville Wright, with Lieutenant Thomas Selfridge as passenger, crashes killing Selfridge. He becomes the first airplane fatality.
  • 1928
    The Okeechobee Hurricane strikes southeastern Florida, killing upwards of 2,500 people. It is the third deadliest natural disaster in United States history, behind the Galveston Hurricane of 1900 and the 1906 San Francisco earthquake.
  • 1939
    Taisto Mäki becomes the first man to run the 10,000 metres in under 30 minutes, in a time of 29:52.6
  • 1941
    World War II: A decree of the Soviet State Committee of Defense, restoring Vsevobuch in the face of the Great Patriotic War, is issued
  • 1943
    World War II: The Russian city of Bryansk is liberated from Nazis.
  • 1976
    The first Space Shuttle, Enterprise, is unveiled by NASA.
  • 1991
    Estonia, North Korea, South Korea, Latvia, Lithuania, the Marshall Islands and Micronesia join the United Nations.
  • 1993
    Last Russian troops leave Poland.
  • 2001
    The New York Stock Exchange reopens for trading after the September 11 Attacks, the longest closure since the Great Depression.
  • 2006
    An audio tape of a private speech by Hungarian Prime Minister Ferenc Gyurcsány is leaked to the public, in which he confessed that his Hungarian Socialist Party had lied to win the 2006 election, sparking widespread protests across the country.
  • 2007
    AOL, once the largest ISP in the U.S., officially announces plans to refocus the company as an advertising business and to relocate its corporate headquarters from Dulles, Virginia to New York, New York.
  • 2011
    Occupy Wall Street movement began in Zucotti Park, New York City.

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