September: Facts, Holidays, Historical Events, and More

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Essential Facts About September

Autumn park
Marco Maccarini / Getty Images

September is the 9th month of the year and marks the beginning of autumn in the Northern hemisphere and the start of spring in the Southern hemisphere.

The name September comes from the Latin septem for seven, since this was the seventh month of the Roman calendar. The month was named during a time when the calendar year began with March, which is why its name no longer corresponds with its placement in the Julian and Gregorian calendars. September starts on the same day of the week as December each year, but does not end on the same day of the week as any other month in the year.

There are 30 days in the month of September. 

September has three birth flowers: the forget-me-not, the morning glory and the aster. Forget-me-nots represent love and memories, asters represent love as well, and the morning glory represents unrequited love. These are all very passionate flowers.

The birth stone for the month is the sapphire. 


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September Holidays

American Flags
Labor Day is observed on the first Monday each September. Fran Polito / Getty Images
  • Labor Day is the most well known holiday in September. It is observed every year on the first Monday in September.
  • Native American Day is always celebrated on the 4th Friday of September.
  • Grandparent's Day is observed in the United States on the first Sunday after Labor Day.
  • In the northern hemisphere, the Autumn Equinox occurs and fall begins. This takes place on September 22nd or 23rd, depending on the year.
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Fun Days to Celebrate in September

Pizza Margharita
September 5th is National Cheese Pizza Day. Moncherie / Getty Images
  • September 5th: National Cheese Pizza Day
  • September 9th: National Teddy Bear Day
  • September 16th: National Play-Doh Day
  • September 19th: International "Talk Like A Pirate Day"
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Historical Events

Photograph of 1973 Senate Watergate committee hearing.
Details of Watergate emerged at 1973 Senate hearings. Getty Images
  • September 1st, 1830: The poem "Mary had a Little Lamb" was published.
  • September 2, 1666: The Great Fire of London occurred.
  • September 5, 1774: The 1st Continental Congress was called to order. 
  • September 5th, 1961: President John F. Kennedy signed a hijacking bill, making air piracy a crime punishable by death or imprisonment.
  • September 8, 1974: Former President Richard M. Nixon was given an unconditional pardon, for his role in the infamous "Watergate" fiasco by President Gerald Ford.
  • September 9, 1776: The Continental Congress changed the name of the United Colonies to the United States. 
  • September 11, 2001: The United States was attacked by terrorists. Almost 3,000 people in New York, Pennsylvania and Washington DC died because of the attacks that took place on that day.
  • September 14, 1901: President William McKinley was shot on September 6, 1901 while attending the Buffalo Pan-American Exposition in New York. He passed away eight days later on. 
  • September 18, 1851: The New York Times published it first edition.
  • September 24th, 1789: The US Supreme Court was established. 
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Your Citation
Allan, Dixie. "September: Facts, Holidays, Historical Events, and More." ThoughtCo, Jun. 19, 2017, Allan, Dixie. (2017, June 19). September: Facts, Holidays, Historical Events, and More. Retrieved from Allan, Dixie. "September: Facts, Holidays, Historical Events, and More." ThoughtCo. (accessed February 19, 2018).