What are the important events that happened on September 17? Here are historical events, facts, and some myths about this day.

September 17: Facts & Myths About This Day

September 17 is the 260^th day of the year 2025 in the Gregorian calendar. There are 105 days remaining until the end of this year. The day of the week is Wednesday.

Under the Julian calendar, this day is September 4, 2025 – a Wednesday. Both day of the week are the same but did you notice the difference with the Gregorian calendar?

When this day started, 29,301,120 minutes 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 ‘dihectahexacontagon’ 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 153 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 4,653 days since this fabled cataclysmic event.

September 17 Historical Events

• 1111 –
  Highest Galician nobility led by Pedro Fróilaz de Traba and the bishop Diego Gelmírez crown Alfonso VII as “King of Galicia”.
• 1631 –
  Sweden wins a major victory at the Battle of Breitenfeld against the Holy Roman Empire during the Thirty Years War.
• 1775 –
  American Revolutionary War: The Invasion of Canada begins with the Siege of Fort St. Jean.
• 1778 –
  The Treaty of Fort Pitt is signed. It is the first formal treaty between the United States and a Native American tribe (the Lenape or Delaware Indians).
• 1862 –
  American Civil War: The Allegheny Arsenal explosion results in the single largest civilian disaster during the war.
• 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
• 1948 –
  The Nizam of Hyderabad surrenders his sovereignty over the Hyderabad State and joins the Indian Union.
• 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.
• 2011 –
  Occupy Wall Street movement began in Zucotti Park, New York City.

Who were born on September 17?

• 1857 –
  Konstantin Tsiolkovsky, Russian rocket scientist (d. 1935)
• 1881 –
  Alfred Francis Blakeney Carpenter, English soldier (d. 1955)
• 1902 –
  Bea Miles, Australian eccentric and writer (d. 1973)
• 1927 –
  George Blanda, American football player (d. 2010)
• 1940 –
  Sotiris Moustakas, Greek actor (d. 2007)
• 1942 –
  Des Lynam, English television presenter
• 1969 –
  Ken Doherty, Irish snooker player
• 1975 –
  Austin St. John, American actor
• 1975 –
  Jade Esteban Estrada, Latin pop singer, comedian and activist
• 1987 –
  Paul Huntington, English footballer

Who died on September 17?

• 1563 –
  Henry Manners, 2nd Earl of Rutland, English soldier (b. 1526)
• 1665 –
  Philip IV of Spain (b. 1605)
• 1771 –
  Tobias Smollett, Scottish novelist (b. 1721)
• 1808 –
  Benjamin Bourne, American politician (b. 1755)
• 1948 –
  Folke Bernadotte, Swedish diplomat (b. 1895)
• 1973 –
  Hugo Winterhalter, American bandleader (b. 1909)
• 1995 –
  Lucien Victor, Belgian cyclist (b. 1931)
• 1996 –
  Spiro Agnew, Vice President of the United States (b. 1918)
• 2006 –
  Patricia Kennedy Lawford, American socialite (b. 1924)
• 2011 –
  Colin Madigan, Australian architect (b. 1921)