September

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School starts in September in many countries, such as here, in Belgium
WPA poster, 1940
Sapphire, September birthstone
Forget-me-not, September birth flower

September is the ninth month of the year in the Julian and Gregorian calendars and the third month to have the length of 30 days.

September in the Northern Hemisphere is the seasonal equivalent of March in the Southern Hemisphere. 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, in which children go back to school after the summer break, sometimes on the first day of the month.

September (Roman month) (from Latin septem, "seven") was originally the seventh of ten months on the oldest known Roman calendar, with March (Latin Martius) the first month of the year until perhaps as late as 153 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.

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

September was called "harvest month" in Charlemagne's calendar.[3] September corresponds partly to the Fructidor and partly to the Vendémiaire of the first French republic.[3] On Usenet, it is said that September 1993 (Eternal September) never ended. September is called Herbstmonat, harvest month, in Switzerland.[3] The Anglo-Saxons called the month Gerstmonath, barley month, that crop being then usually harvested.[3]

September in Astronomy and Astrology[edit | edit source]

Meteor showers that occur in September include the Aurigids, the Delta Aurigids which occur from mid-September to early October, the Southern Taurids, which occur from September 10 to November 20, and the Andromedids which occur from September 25-December 25.

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.

September symbols[edit | edit source]

Observances[edit | edit source]

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

Non-Gregorian observances, 2017[edit | edit source]

(please note that all Jewish observances, which are set by the Hebrew calendar, begin at sunset the day prior to the date listed and end on the nightfall of the date in question)

Month-long observances[edit | edit source]

United States observances[edit | edit source]

Food Months[edit | edit source]

Movable Gregorian Observances, 2017 dates[edit | edit source]

First Friday: September 1[edit | edit source]

First Sunday: September 3[edit | edit source]

First Monday: September 4[edit | edit source]

First Wednesday: September 6[edit | edit source]

First Thursday: September 7[edit | edit source]

Thursday after the first Sunday: September 7[edit | edit source]

Week of September 10: September 10-16[edit | edit source]

Weekend after first Friday[edit | edit source]

Saturday after first Monday[edit | edit source]

Second Saturday[edit | edit source]

Week of September 17[edit | edit source]

First Sunday after September 4[edit | edit source]
Second Sunday[edit | edit source]
Nearest weekday to September 12[edit | edit source]
Weekday nearest September 17[edit | edit source]
Third Friday[edit | edit source]
Saturday of the Third Weekend[edit | edit source]

Weekend of the Week of September 17[edit | edit source]

Sunday of the Third Weekend[edit | edit source]

Week of September 22[edit | edit source]

Week of Sunday before September 23[edit | edit source]

Saturday closest to September 23[edit | edit source]

Last full week[edit | edit source]

Monday after third Sunday: September 18[edit | edit source]

Third Monday[edit | edit source]

Third Tuesday[edit | edit source]

Observances pertaining to the September Equinox[edit | edit source]

Fourth Friday[edit | edit source]

Last Saturday[edit | edit source]

Last Sunday[edit | edit source]

Fourth Monday[edit | edit source]

Last Week of the Month[edit | edit source]

Last Friday[edit | edit source]

Last weekday in September[edit | edit source]

Last Week of September[edit | edit source]

Fixed Gregorian observances[edit | edit source]

References[edit | edit source]

  1. Metoffice.gov.uk
  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. 3.0 3.1 3.2 3.3 Wikisource-logo.svg Chisholm, Hugh, ed. (1911). "September". Encyclopædia Britannica (11th ed.). Cambridge University Press. 
  4. SHG Resources. [http://www.shgresources.com/gems/birthflowers tp://www.flowerstower.com/singleflower.php?name=Forget-me-not http://www.shgresources.com/gems/birthflowers tp://www.flowerstower.com/singleflower.php?name=Forget-me-not] Check |url= value (help).  line feed character in |url= at position 47 (help); Missing or empty |title= (help)
  5. http://www.hindu-blog.com/2009/01/amavasi-days-in-2009-amavasya-no-moon.html
  6. 6.0 6.1 https://www.sgno.org/outreach/cancer-awareness-month/
  7. http://www.cinj.org/sites/cinj/files/documents/Sept15LeukemiaLymphoma.pdf
  8. http://www.thyca.org/how-to-help/awareness/september/
  9. 9.00 9.01 9.02 9.03 9.04 9.05 9.06 9.07 9.08 9.09 9.10 "Food Days, Weeks, Months - September". UNL Food. University of Nebraska–Lincoln. 
  10. Goldstein, Darra (2011). "National Turkey Day". Gastronomica 11 (4). http://www.gastronomica.org/national-turkey-day/. 
  11. "September is Hydrocephalus Awareness Month! Here’s What You Can Do…". Hydrocephalus Association. Retrieved 29 July 2016. 
  12. http://nationaldaycalendar.com/september-monthly-observations/
  13. http://www.discovercaliforniawines.com/californiawinemonth/
  14. https://anydayguide.com/calendar/3142

External links[edit | edit source]

  • The dictionary definition of September at Wiktionary
  • Media related to September at Wikimedia Commons
  • Quotations related to September at Wikiquote