October is the tenth month of the year in the Julian and Gregorian Calendars and the sixth month to have the length of 31 days. The eighth month in the old Roman calendar, October retained its name (from the Latin ôctō meaning "eight") after January and February were inserted into the calendar that had originally been created by the Romans. In Ancient Rome, one of three Mundus patet would take place on October 5, Mrinalia October 11, Augustalia on October 12, October Horse on October 15, and Armilustrium on October 19. These dates do not correspond to the modern Gregorian calendar. Among the Anglo-Saxons, it was known as Winterfylleth, because at this full moon (fylleth) winter was supposed to begin.
October is commonly associated with the season of autumn in the Northern hemisphere and with spring in the Southern hemisphere.
Other October observances
This list does not necessarily imply either official status or general observance.
Non-Gregorian observances, 2017
(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 sunset of the date in question)
- July 9-October 5: Vassa (Theravada Buddhism)
- July 4-October 31: Chaturmas (Hinduism, Jainism)
- September 27-October 2: Dashain (Hinduism)
- October 2: Mehregan (Solar Hijri calendar, Iran)
- October 3: Shia day of Mourning: Siyyum of Shaheed-e-Karbala
- October 3-4: Thesmophoria (Attic calendar, modern Hellenism (religion))
- October 4: Erev Sukkot (Jewish calendar)
- October 4-6: Chuseok (Korean calendar)
- October 5: Abhidhamma Day (Theravada Buddhism, Burmese calendar)
- October 5: Sharad Purnima (Hinduism)
- October 5-11: Sukkot (Jewish calendar)
- October 6: Chandani Padva (Gujarati people, India)
- October 6/7-11: Chol HaMoed Sukkot (Jewish calendar, Seharane in Israel)
- October 7: Shabbat Chol Hamoed Sukkot (Jewish calendar)
- October 7: Shia day of Remembrance: Aam-ul-feel (Islamic calendar)
- October 8: Karva Chauth (Hinduism, Indian National Calendar)
- October 8: Shia day of Remembrance: Qibla was changed from Bait-ul-Muqqaddas to Ka'bah, 2 A.H (Islamic calendar)
- October 10: Shia day of Mourning: 10th day of Ashura (Islamic calendar)
- October 11: Hoshanah Rabbah (Jewish calendar)
- October 12: Simchat Torah (Jewish calendar)
- October 14: Shabbat Mevorchim (Jewish calendar)
- October 15: Shia day of Mourning: Martyrdom of Imam Zain-ul-Abideen, 95 A.H. (Islamic calendar)
- October 17: Dhanteras (Hinduism)
- October 17: Lakshmi Puja (Hinduism)
- October 17-21: Tihar (festival) (Nepali Vikram Samvat calendar, Hinduism)
- October 18: Amavasya (Hinduism)
- October 18: Kati Bihu Assam, India)
- October 18/19-22: Diwali (Hinduism)
- October 19: Bandi Chhor Divas (Sikhism)
- October 19: Kali Puja (Hinduism)
- October 20: Hecate's Deipnon (Attic calendar, modern Hellenism (religion))
- October 20: Mha Puja (Nepal Sambat)
- October 20: Shia day of Mourning: 20th day of Ashura (Islamic calendar)
- October 20-21: Rosh Chodesh of Cheshvan (Jewish calendar)
- October 21: Bhai Phonta (Hinduism, Bengali calendar)
- October 21: Noumenia (Attic calendar, modern Hellenism (religion))
- October 21: Two Shia Days of Remembrance (Islamic calendar)
- October 23: Bahab (Jewish calendar)
- October 24-27: Chhath (Hinduism)
- October 27: Birth of Imam Musa-e-Kazim, 128 A.H. (Islamic calendar)
- October 28: Double Ninth Festival (Chinese calendar)
- October 29: Cyrus the Great Day (Solar Hijri calendar)
- October 30-44: Multiple Shia days of remembrance (Islamic calendar)
The last two to three weeks in October (and, occasionally, the first week of November) are the only time of the year during which each of the "Big Four" major North American professional sports leagues schedule games; the National Basketball Association begins its preseason and about two weeks later starts the regular season, the National Hockey League is about one month into its regular season, the National Football League is about halfway through its regular season, and Major League Baseball is in its postseason with the League Championship Series and World Series. There have been 17 occasions in which all four leagues have played games on the same day (an occurrence popularly termed a "sports equinox"), with the most recent of these having taken place on October 19, 2017. Additionally, the Canadian Football League is typically nearing the end of its regular season during this period, while Major League Soccer is beginning the MLS Cup Playoffs.
United States, Culinary
Movable observances, 2017 dates
First Full Week: October 1-7
First Sunday: October 1
First Monday: October 2
First Tuesday: October 3
First Wednesday: October 4
First Thursday: October 5
First Friday: October 6
Week of October 9: October 8-14
Week of October 10: October 8-14
Second Sunday: October 8
Second Monday: October 9
Wednesday of second full week in October: October 11
Second Wednesday: October 11
Second Thursday: October 12
Second Friday: October 13
Friday falling on 13th: October 13
Second Saturday: October 14
Third Sunday: October 15
Third Monday: October 16
- Boss's Day (United States, Canada, Lithuania and Romania)
Third Thursday: October 19
Third Saturday: October 21
Week of Fourth Wednesday: October 22-28
Second to last Sunday: October 22
Fourth Monday: October 23
Fourth Wednesday: October 25
Last Friday: October 27
Fourth Saturday: October 28
Saturday closest to October 26: October 28
Last Sunday: October 29
Last Monday: October 30
October Star Stones:
- Libra (Sept. 22 to Oct. 22)
Planetary Stone: Sapphire; Lucky Charms: Opal, Sardonyx, Chrysolite; birthstone: pink Tourmaline, Opal
Planetary Stone: Garnet, Ruby; Lucky Charms: Aquamarine, Beryl
- October Lokesh birthstone is roser.
- October Mystical birthstone is Jasper.
- October Ayurvedic Birthstone is Opal.
- ^ Chisholm, Hugh, ed. (1911). "October". Encyclopædia Britannica (11th ed.). Cambridge University Press.
- ^ "CATHOLIC ENCYCLOPEDIA: Special Devotions For Months". Newadvent.org. Retrieved 2012-10-24.
- ^ "Health Literacy Month – Finding the Right Words for Better Health". www.healthliteracymonth.org.
- ^ "SDMS Medical Ultrasound Awareness Month". www.sdms.org.
- ^ "Home - Rettsyndrome.org". www.rettsyndrome.org.
- ^  Archived February 8, 2007, at the Wayback Machine.
- ^ Rapaport, Daniel (October 19, 2017). "Today Might Be the Best Sports Day of the Year". Sports Illustrated. Retrieved October 20, 2017.
- ^ "October is Adopt a Shelter Dog Month". ASPCA. Retrieved 2014-10-17.
- ^ http://www.staysafeonline.info/content/about-ncsam Archived October 5, 2009, at the Wayback Machine.
- ^ "Italian Heritage and Culture Month". Italyculturemonth.org. Retrieved 2011-11-01.
- ^ "American Pharmacists Month 2011". Pharmacist.com. Retrieved 2011-11-01.
- ^ "Little People of America".
- ^ "Eczema Awareness Month - National Eczema Association". National Eczema Association.
- ^ "ADHA – October is National Dental Hygiene Month". Adha.org. Retrieved 2011-11-01.
- ^ "Healthy Lung Month - Lung problems". 5 October 2012.
- ^ "Observing Infertility Awareness Month". Library.adoption.com. Retrieved 2011-11-01.
- ^ "Liver Awareness Month". www.liverfoundation.org.
- ^  Archived November 21, 2007, at the Wayback Machine.
- ^ APTA | National Physical Therapy Month Archived January 5, 2009, at the Wayback Machine.
- ^ "Spina Bifida Association – Spina Bifida Association". Sbaa.org. Retrieved 2011-11-01.
- ^ "October is SIDS Awareness Month". www.nichd.nih.gov.
- ^ "National Pizza Month". Pizza.com. Retrieved 2012-10-24.
- ^ "Popcorn Poppin' Month". Popcorn.org. Retrieved 2012-10-24.
- ^ "October is National Pork Month". ThePigSite. 2007-10-02.
- ^ "NOAA Fisheries Celebrates National Seafood Month". NOAA.gov. 2017-10-01. Retrieved 2017-10-09.
- ^ https://www.americangeosciences.org/news/earth-science-week-2017-theme-announced-earth-and-human-activity
- ^ https://findingada.com/
- ^ "Asexual Awareness Week". www.asexualawarenessweek.com.
- ^ "Diversity - UMUC". www.umuc.edu.
- ^ "Gemstone Leaflet" (PDF). Jewelers of America. Archived from the original (PDF) on 2012-02-22. Retrieved Jan 22, 2012.
- ^ SHG Resources. "Birth Months, Flowers, and Gemstones". SHG Resources. Retrieved 2011-11-01.
||Wikiquote has quotations related to: October
||Look up October in Wiktionary, the free dictionary.
||Wikimedia Commons has media related to October.