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This article is about the month. For other uses, see September (disambiguation).
"Sep." and "Sept." redirect here. For other uses of Sep., see SEP. For the family division, see Sept.
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September is the ninth month of the year in the Gregorian calendar and interchangeably the ninth or tenth month in the less commonly used Julian calendar. In the modern Gregorian calendar, its length is 30 days.

September, from the Très Riches Heures du Duc de Berry

September in the Northern Hemisphere and March in the Southern Hemisphere are seasonally equivalent.

In the Northern hemisphere, the beginning of the meteorological autumn is on 1 September. In the Southern hemisphere, the beginning of the meteorological spring is on 1 September.[1]

September marks the beginning of the ecclesiastical year in the Eastern Orthodox Church. It is the start of the academic year in many countries of the northern hemisphere, in which children go back to school after the summer break, sometimes on the first day of the month. Some Libras and Virgos are born in September, with Virgos being born on September 1st through September 22nd and Libras September 23rd through September 30.

September (from Latin septem, "seven") was originally the seventh month in the oldest known Roman calendar, the calendar of Romulus c. 750 BC, with March being (Latin Martius) the first month of the year until perhaps as late as 451 BC.[2] After the calendar reform that added January and February to the beginning of the year, September became the ninth month but retained its name. It had 29 days until the Julian reform, which added a day.

Events

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Ancient Roman observances for September include Ludi Romani, originally celebrated from September 12 to September 14, later extended to September 5 to September 19. In the 1st century BC, an extra day was added in honor of the deified Julius Caesar on 4 September. Epulum Jovis was held on September 13. Ludi Triumphales was held from September 18–22. The Septimontium was celebrated in September, and on December 11 on later calendars. These dates do not correspond to the modern Gregorian calendar.

September was called the "harvest month" in Charlemagne's calendar. September corresponds partly to the Fructidor and partly to the Vendémiaire of the first French republic. September is called Herbstmonat, harvest month, in Switzerland. The Anglo-Saxons called the month Gerstmonath, barley month, that crop being then usually harvested.[3]

In 1752, the British Empire adopted the Gregorian calendar. In the British Empire that year, September 2 was immediately followed by September 14.

On Usenet, it is said that September 1993 (Eternal September) never ended.

In the United States, September is one of the most common birth months (third most popular after August and July, which both have 31 days), as all but one Top 10 most common birthdays are in September, based on the National Center for Health Statistics statistics on births between 1994 and 2014. The most common birthday is September 9 (#1), least common is September 1 (#250).[4][5][6]

Astronomy and astrology

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The September equinox takes place in this month, and certain observances are organized around it. It is the Autumn equinox in the Northern Hemisphere, and the Vernal equinox in the Southern Hemisphere. The dates can vary from 21 September to 24 September (in UTC).

September is mostly in the sixth month of the astrological calendar (and the first part of the seventh), which begins at the end of March/Mars/Aries.

Symbols

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September's birthstone is the sapphire. The birth flowers are the forget-me-not, morning glory and aster.[7][8] The zodiac signs are Virgo (until September 22) and Libra (September 23 onward).[9][10]

Observances

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This list does not necessarily imply either official status or general observance.

Sapphire, September birthstone

Non-Gregorian

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Month-long

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United States

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Food months
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Movable Gregorian

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Forget-me-not, September birth flower

First Wednesday

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First Thursday

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First Friday

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First Sunday

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First Sunday after September 4

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Week of the first Monday

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Week of September 10

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First Monday

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Nearest weekday to September 12

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Second Saturday

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Saturday after first Monday

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Second Sunday

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First Sunday after first Monday

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Week of September 17

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Third Tuesday

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September 17 but observed on previous Friday if it falls on a Saturday or following Monday if on a Sunday

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Third Friday

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POW☆MIA Flag.

Third Saturday

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Weekend of the week of September 17

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Third Sunday

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Week of Sunday before September 23

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Week of September 22

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Last week

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Last full week

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Third Monday

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Pertaining to the September Equinox

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Fourth Friday

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Last Friday

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Last Saturday

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Last Sunday

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Fourth Monday

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Last Wednesday

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Last weekday

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Fixed Gregorian

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School starts in September in many countries, such as Belgium
Morning glories
Morning glories, one of the birth flowers of September.
Asters
Asters, a September birth flower.
WPA poster, 1940

References

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  1. ^ Office, Met. "Met Office: Changing seasons". webarchive.nationalarchives.gov.uk. Archived from the original on 2009-02-25.
  2. ^ H.H. Scullard, Festivals and Ceremonies of the Roman Republic (Cornell University Press, 1981), p. 84; Gary Forsythe, Time in Roman Religion: One Thousand Years of Religious History (Routledge, 2012), p. 14.
  3. ^  One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "September". Encyclopædia Britannica. Vol. 24 (11th ed.). Cambridge University Press. p. 653.
  4. ^ "The most common birthday is around the corner. Here's where yours falls on the list". USA TODAY. Retrieved 2023-09-09.
  5. ^ Specktor, Brandon (2020-09-17). "Why September Is the Most Popular Month for Birthdays?". Reader's Digest. Retrieved 2023-09-09.
  6. ^ "Happy birthday to you and you and you: Why Sept. 9 is the most common birthday". TODAY.com. 2023-09-08. Retrieved 2023-09-09.
  7. ^ SHG Resources. "SHGresources.com". SHGresources.com. Archived from the original on 2013-06-16. Retrieved 2013-08-22.
  8. ^ "Flowerstower.com". Archived from the original on February 24, 2013. Retrieved 2013-08-22.
  9. ^ The Earth passes the junction of the signs at 13:30 UT/GMT September 22, 2020, and will pass it again at 19:21 UT/GMT September 22, 2021.
  10. ^ "Astrology Calendar", yourzodiacsign. Signs in UT/GMT for 1950–2030.
  11. ^ a b "Cancer Awareness Month :: Society of Gynecologic Nurse Oncologists". www.sgno.org.
  12. ^ "September Is Leukemia and Lymphoma Awareness Month" (PDF). Archived from the original (PDF) on 2015-09-05. Retrieved 2016-08-19.
  13. ^ Baunfire.com, Spark CMS by. "September Is Thyroid Cancer Awareness Month – ThyCa: Thyroid Cancer Survivors' Association, Inc". www.thyca.org.
  14. ^ "Promote National Suicide Prevention Month". suicidepreventionlifeline.org. Retrieved 2019-11-25.
  15. ^ "Fruit & Veg Month – Healthy Kids". 8 October 2013.
  16. ^ a b c d e f g h i j "Food Days, Weeks, Months – September". UNL Food. University of Nebraska–Lincoln.
  17. ^ Goldstein, Darra (2011). "National Turkey Day". Gastronomica. 11 (4): iii–iv. doi:10.1525/gfc.2012.11.4.iii.
  18. ^ "September is Hydrocephalus Awareness Month! Here's What You Can Do..." Hydrocephalus Association. Retrieved 29 July 2016.
  19. ^ "California Wine Month – California Wines". www.discovercaliforniawines.com. Archived from the original on 2018-11-27. Retrieved 2016-08-20.
  20. ^ "September Monthly Observations". 4 January 2016.
  21. ^ "Home » te Wiki o te Reo Māori". Archived from the original on 2020-02-06. Retrieved 2020-02-05.
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  • The dictionary definition of September at Wiktionary
  • Media related to September at Wikimedia Commons
  • Quotations related to September at Wikiquote
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