October

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January is the first month of the year in the Julian and Gregorian calendars and the first of seven months to have a length of 31 days. The first day of the month is known as New Year's Day. It is, on average, the coldest month of the year within most of the Northern Hemisphere and the warmest month of the year within most of the Southern Hemisphere. In the Southern hemisphere, January is the seasonal equivalent of July in the Northern hemisphere and vice versa. Birthday Number the letter "J".

February is the second and shortest month of the year in the Julian and Gregorian calendar with 28 days in common years and 29 days in leap years, with the quadrennial 29th day being called the leap day. It is the first of five months to have a length of less than 31 days, and the only month to have a length of less than 30 days, with the other seven months having 31 days. This year February has 28 days.

March is the third month of the year in both the Julian and Gregorian calendars. It is the second of seven months to have a length of 31 days. In the Northern Hemisphere, the meteorological beginning of spring occurs on the first day of March. The March equinox on the 20th or 21st marks the astronomical beginning of spring in the Northern Hemisphere and the beginning of autumn in the Southern Hemisphere, where September is the seasonal equivalent of the Northern Hemisphere's March.

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Maple leaf in October. Maplefall2red.jpg
Maple leaf in October.

October is the tenth month of the year in the Julian and Gregorian Calendars and the sixth of seven months to have a 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, Meditrinalia 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 Ƿinterfylleþ, because at this full moon (fylleþ) winter was supposed to begin. [1]

The Julian calendar, proposed by Julius Caesar in 46 BC, was a reform of the Roman calendar. It took effect on 1 January 45 BC, by edict. It was the predominant calendar in the Roman world, most of Europe, and in European settlements in the Americas and elsewhere, until it was refined and gradually replaced by the Gregorian calendar, promulgated in 1582 by Pope Gregory XIII.

The Gregorian calendar is the most widely used civil calendar in the world. It is named after Pope Gregory XIII, who introduced it in October 1582. The calendar spaces leap years to make the average year 365.2425 days long, approximating the 365.2422-day tropical year that is determined by the Earth's revolution around the Sun. The rule for leap years is:

Every year that is exactly divisible by four is a leap year, except for years that are exactly divisible by 100, but these centurial years are leap years if they are exactly divisible by 400. For example, the years 1700, 1800, and 1900 are not leap years, but the year 2000 is.

Day unit of time lasting 24 hours

A day, a unit of time, is approximately the period of time during which the Earth completes one rotation around its axis with respect to the Sun. In 1960, the second was redefined in terms of the orbital motion of the Earth in year 1900, and was designated the SI base unit of time. The unit of measurement "day", was redefined as 86 400 SI seconds and symbolized d. In 1967, the second and so the day were redefined by atomic electron transition. A civil day is usually 86 400 seconds, plus or minus a possible leap second in Coordinated Universal Time (UTC), and occasionally plus or minus an hour in those locations that change from or to daylight saving time.

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October is commonly associated with the season of autumn in the Northern hemisphere and with spring in the Southern hemisphere.

Autumn one of the Earths four temperate seasons, occurring between summer and winter

Autumn, also known as fall in American English and sometimes in Canadian English, is one of the four temperate seasons. Autumn marks the transition from summer to winter, in September or March, when the duration of daylight becomes noticeably shorter and the temperature cools down considerably. One of its main features is the shedding of leaves from deciduous trees.

Spring (season) one of the Earths four temperate seasons, occurring between winter and summer

Spring is one of the four conventional temperate seasons, following winter and preceding summer. There are various technical definitions of spring, but local usage of the term varies according to local climate, cultures and customs. When it is spring in the Northern Hemisphere, it is autumn in the Southern Hemisphere and vice versa. At the spring equinox, days and nights are approximately twelve hours long, with day length increasing and night length decreasing as the season progresses.

October symbols

The calendula Calendula January 2008-1 filtered.jpg
The calendula
Opal A hydrated amorphous form of silica

Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike crystalline forms of silica, which are classed as minerals. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. Opal is the national gemstone of Australia.

Birthstone Gemstones representing a persons birth month

A birthstone is a gemstone that represents a person's month of birth. Birthstones are often worn as jewelry or as a pendant.

Tourmaline cyclosilicate mineral group

Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone and the gemstone comes in a wide variety of colors.

October observances

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

Non-Gregorian observances: 2018 dates

(Please note that all Baha'i, Islamic, and Jewish observances begin at sundown prior to the date listed, and end at sundown of the date in question unless otherwise noted.)

Shemini Atzeret is a Jewish holiday. It is celebrated on the 22nd day of the Hebrew month of Tishrei in the Land of Israel, and on the 22nd and 23rd outside the Land, usually coinciding with late September or early October. It directly follows the Jewish festival of Sukkot which is celebrated for seven days, and thus Shemini Atzeret is literally the eighth day. It is a separate—yet connected—holy day devoted to the spiritual aspects of the festival of Sukkot. Part of its duality as a holy day is that it is simultaneously considered to be both connected to Sukkot and also a separate festival in its own right.

Judaism ancient, monotheistic, Abrahamic religion with the Torah as its foundational text

Judaism is the religion of the Jewish people. It is an ancient, monotheistic, Abrahamic religion with the Torah as its foundational text. It encompasses the religion, philosophy, and culture of the Jewish people. Judaism is considered by religious Jews to be the expression of the covenant that God established with the Children of Israel. Judaism encompasses a wide body of texts, practices, theological positions, and forms of organization. The Torah is part of the larger text known as the Tanakh or the Hebrew Bible, and supplemental oral tradition represented by later texts such as the Midrash and the Talmud. With between 14.5 and 17.4 million adherents worldwide, Judaism is the tenth largest religion in the world.

Simchat Torah Jewish holiday celebrating completion of annual cycle of Torah reading and start of new annual cycle

Simchat Torah or Simhat Torah is a Jewish holiday that celebrates and marks the conclusion of the annual cycle of public Torah readings, and the beginning of a new cycle. Simchat Torah is a component of the Biblical Jewish holiday of Shemini Atzeret, which follows immediately after the festival of Sukkot in the month of Tishrei.

Month-long observances

Catholic Church Christian church led by the Bishop of Rome

The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with approximately 1.3 billion baptised Catholics worldwide as of 2016. As the world's "oldest continuously functioning international institution", it has played a prominent role in the history and development of Western civilisation. The church is headed by the Bishop of Rome, known as the Pope. Its central administration, the Holy See, is in the Vatican City, an enclave within the city of Rome in Italy.

National Breast Cancer Awareness Month annual health campaign organized by breast cancer charities every October to increase awareness of the disease

Breast Cancer Awareness Month (BCAM), also referred to in America as National Breast Cancer Awareness Month (NBCAM), is an annual international health campaign organized by major breast cancer charities every October to increase awareness of the disease and to raise funds for research into its cause, prevention, diagnosis, treatment and cure. The campaign also offers information and support to those affected by breast cancer.

World Vegetarian Day is observed annually around the planet on October 1. It is a day of celebration established by the North American Vegetarian Society in 1977 and endorsed by the International Vegetarian Union in 1978, "To promote the joy, compassion and life-enhancing possibilities of vegetarianism." It brings awareness to the ethical, environmental, health, and humanitarian benefits of a vegetarian lifestyle.

United Kingdom

United States

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 19 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 taking place on October 28, 2018. [16] 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, 2018 dates

First Monday: October 1

First Tuesday: October 2

First Wednesday: October 3

First Thursday: October 4

First Friday: October 5

First Full Week: October 7–13

First Sunday: October 7

Week of October 9: October 7–13

Week of October 10: October 7–13

Second Monday: October 8

Second Wednesday: October 10

Second Thursday: October 11

Second Friday: October 12

Second Saturday: October 13

Second Sunday: October 14

Third Monday: October 15

Wednesday of second full week in October: October 17

Third Thursday: October 18

Third Saturday: October 20

Week of Fourth Wednesday: October 21–27

Third Sunday: October 21

Second to last Sunday: October 21

Fourth Monday: October 22

Fourth Wednesday: October 24

Last Friday: October 26

Fourth Saturday: October 27

Saturday closest to October 26: October 27

Last Sunday: October 28

Last Monday: October 29

Fixed observances

October, from the Très Riches Heures du Duc de Berry Les Très Riches Heures du duc de Berry octobre.jpg
October, from the Très Riches Heures du Duc de Berry
A shop in Derry decorated for Halloween Halloween Derry 2005.jpg
A shop in Derry decorated for Halloween
Halloween pumpkins Pumpkins-2009.jpg
Halloween pumpkins

Miscellaneous

  1. Wikisource-logo.svg Chisholm, Hugh, ed. (1911). "October"  . Encyclopædia Britannica (11th ed.). Cambridge University Press.
  2. "Gemstone Leaflet" (PDF). Jewelers of America. Archived from the original (PDF) on 2012-02-22. Retrieved Jan 22, 2012.
  3. SHG Resources. "Birth Months, Flowers, and Gemstones". SHG Resources. Retrieved 2011-11-01.
  4. "CATHOLIC ENCYCLOPEDIA: Special Devotions For Months". Newadvent.org. Retrieved 2012-10-24.
  5. "Health Literacy Month – Finding the Right Words for Better Health". www.healthliteracymonth.org.
  6. "SDMS Medical Ultrasound Awareness Month". www.sdms.org.
  7. "Home - Rettsyndrome.org". www.rettsyndrome.org.
  8. Archived February 8, 2007, at the Wayback Machine
  9. Hultin G. Why Celebrate Vegetarian Awareness Month? Food & Nutrition, October 7, 2014, Accessed November 14, 2018
  10. Vegetarian Awareness Month: Celebrating Meatless Mindfulness, Oldways website, September 28, 2017, Accessed November 14, 2018
  11. World Vegetarian Day, October 1. North American Vegetarian Society (the North American WVD sponsor explains that “World Vegetarian Day [on] October 1st is the annual kick-off of Vegetarian Awareness Month”, accessed November 14, 2018
  12. Palmer S. World Vegetarian Awareness Month. Vegan Outreach website, October 2, 2017, Accessed November 14, 2018
  13. October is National Vegetarian Awareness Month. Fix.com. October 1, 2014, Accessed November 14, 2018
  14. Celebrate Vegetarian Awareness Month. Fruits & Veggies: More Matters. Monday, October 14, 2013, at 4:00 am. Accessed November 14, 2018
  15. Gerber J. 9 Easy Wasys to Celebrate Vegetarian Awareness Month. Care2. October 1, 2012. Accessed November 14, 2018
  16. Bushnell, Henry (October 27, 2018). "Dodgers' World Series win ensures Game 5 ... and a historic 'Sports Equinox'". Yahoo Sports. Retrieved October 27, 2018.
  17. "American Archives Month". National Archives. 2017-06-22. Retrieved 2018-09-25.
  18. "October is Adopt a Shelter Dog Month". ASPCA. Retrieved 2014-10-17.
  19. http://www.staysafeonline.info/content/about-ncsam Archived October 5, 2009, at the Wayback Machine
  20. "American Pharmacists Month 2011". Pharmacist.com. Retrieved 2011-11-01.
  21. "Little People of America".
  22. "Eczema Awareness Month – National Eczema Association". National Eczema Association.
  23. "ADHA – October is National Dental Hygiene Month". Adha.org. Retrieved 2011-11-01.
  24. "Healthy Lung Month – Lung problems". 5 October 2012.
  25. "Observing Infertility Awareness Month". Library.adoption.com. Retrieved 2011-11-01.
  26. "Liver Awareness Month". www.liverfoundation.org.
  27. Archived November 21, 2007, at the Wayback Machine
  28. APTA | National Physical Therapy Month Archived January 5, 2009, at the Wayback Machine
  29. "Spina Bifida Association – Spina Bifida Association". Sbaa.org. Retrieved 2011-11-01.
  30. "October is SIDS Awareness Month". www.nichd.nih.gov.
  31. "National Pizza Month". Pizza.com. Retrieved 2012-10-24.
  32. "Popcorn Poppin' Month". Popcorn.org. Retrieved 2012-10-24.
  33. "October is National Pork Month". ThePigSite. 2007-10-02.
  34. "NOAA Fisheries Celebrates National Seafood Month". NOAA.gov. 2017-10-01. Retrieved 2017-10-09.
  35. "About Walk to School Day : Walk & Bike to School". Walkbiketoschool.org. Retrieved 21 October 2017.
  36. "World Ballet Day homepage". worldballetday.com. Retrieved 11 September 2018.
  37. https://worldcollegeradioday.com/
  38. https://worldcpday.org/
  39. https://findingada.com/about/when-is-ald/
  40. "National Astronomy Day 2018".
  41. http://www.earthsciweek.org/about-esw
  42. https://www.aba.com/Engagement/pages/getsmartaboutcredit.aspx#
  43. https://www.facebook.com/aceawareness/
  44. "Diversity – UMUC". www.umuc.edu.

Related Research Articles

April is the fourth month of the year in the Gregorian calendar, the fifth in the early Julian, the first of four months to have a length of 30 days, and the second of five months to have a length of less than 31 days.

August eighth month in the Julian and Gregorian calendars

August is the eighth month of the year in the Julian and Gregorian calendars, and the fifth of seven months to have a length of 31 days. It was originally named Sextilis in Latin because it was the sixth month in the original ten-month Roman calendar under Romulus in 753 BC, and March was the first month of the year. About 700 BC, it became the eighth month when January and February were added to the year before March by King Numa Pompilius, who also gave it 29 days. Julius Caesar added two days when he created the Julian calendar in 46 BC, giving it its modern length of 31 days. In 8 BC, it was renamed in honor of Augustus. According to a Senatus consultum quoted by Macrobius, he chose this month because it was the time of several of his great triumphs, including the conquest of Egypt.

December twelfth month in the Julian and Gregorian calendars

December is the twelfth and final month of the year in the Julian and Gregorian Calendars and is the seventh and last of seven months to have a length of 31 days.

June is the sixth month of the year in the Julian and Gregorian calendars, the second of four months to have a length of 30 days, and the third of five months to have a length of less than 31 days. June contains the summer solstice in the Northern Hemisphere, the day with the most daylight hours, and the winter solstice in the Southern Hemisphere, the day with the fewest daylight hours. June in the Northern Hemisphere is the seasonal equivalent to December in the Southern Hemisphere and vice versa. In the Northern Hemisphere, the beginning of the traditional astronomical summer is 21 June. In the Southern Hemisphere, meteorological winter begins on 1 June.

July is the seventh month of the year in the Julian and Gregorian Calendars and the fourth of seven months to have a length of 31 days. It was named by the Roman Senate in honour of Roman general Julius Caesar, it being the month of his birth. Prior to that, it was called Quintilis, being the fifth month of the 10-month calendar.

May is the fifth month of the year in the Julian and Gregorian Calendars and the third of seven months to have a length of 31 days.

November is the eleventh and penultimate month of the year in the Julian and Gregorian Calendars, the fourth and last of four months to have a length of 30 days, and the fifth and last of five months to have a length of less than 31 days. November was the ninth month of the ancient Roman calendar. November retained its name when January and February were added to the Roman calendar. November is a month of late spring in the Southern Hemisphere and late autumn in the Northern Hemisphere. Therefore, November in the Southern Hemisphere is the seasonal equivalent of May in the Northern Hemisphere and vice versa. In Ancient Rome, Ludi Plebeii was held from November 4–17, Epulum Jovis was held on November 13, and Brumalia celebrations began on November 24. These dates do not correspond to the modern Gregorian calendar.

September ninth month in the Julian and Gregorian calendars

September is the ninth month of the year in the Julian and Gregorian calendars, the third of four months to have a length of 30 days, and the fourth of five months to have a length of less than 31 days. In the Northern Hemisphere September is the seasonal equivalent of March in the Southern Hemisphere.

Remembrance Day memorial day on 11 November

Remembrance Day is a memorial day observed in Commonwealth member states since the end of the First World War to remember the members of their armed forces who have died in the line of duty. Following a tradition inaugurated by King George V in 1919, the day is also marked by war remembrances in many non-Commonwealth countries. Remembrance Day is observed on 11 November in most countries to recall the end of hostilities of First World War on that date in 1918. Hostilities formally ended "at the 11th hour of the 11th day of the 11th month", in accordance with the armistice signed by representatives of Germany and the Entente between 5:12 and 5:20 that morning. The First World War officially ended with the signing of the Treaty of Versailles on 28 June 1919.

<i>Yom HaShoah</i> Israels day of commemoration for the Jews who perished in the Holocaust

Yom Hazikaron laShoah ve-laG'vurah, known colloquially in Israel and abroad as Yom HaShoah and in English as Holocaust Remembrance Day, or Holocaust Day, is observed as Israel's day of commemoration for the approximately six million Jews who perished in the Holocaust as a result of the actions carried out by Nazi Germany and its collaborators, and for the Jewish resistance in that period. In Israel, it is a national memorial day. The first official commemorations took place in 1951, and the observance of the day was anchored in a law passed by the Knesset in 1959. It is held on the 27th of Nisan (April/May), unless the 27th would be adjacent to the Jewish Sabbath, in which case the date is shifted by a day.

The United States has many observances.

Lists of holidays by various categorization.

United States federal observances

United States federal observances are days, weeks, months, or other periods designated by the United States Congress for the commemoration or other observance of various events, activities, or topics. These observances differ from Federal holidays in that Federal employees only receive a day free from work on holidays, not observances. Federal observances that are designated by Congress appear in Title 36 of the United States Code. Below is a list of all observances so designated. Note that not all of the laws below require that the observance be declared, in some cases, such as 36 U.S.C. § 114, Congress simply requested the President to issue a proclamation of the observance. They are published at Pub. L. 105–225, Aug. 12, 1998, 112 Stat. 1256.; Pub. L. 105–225, Aug. 12, 1998, 112 Stat. 1261.; Pub. L. 105–225, Aug. 12, 1998, 112 Stat. 1262.; Pub. L. 107–89, § 1, Dec. 18, 2001, 115 Stat. 876.; and Pub. L. 114–240, § 2(a), Oct. 7, 2016, 130 Stat. 974..