January is the first month of the year in the Julian and Gregorian calendars . Its length is 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 (where it is the second month of winter) and the warmest month of the year within most of the Southern Hemisphere (where it is the second month of summer). In the Southern hemisphere, January is the seasonal equivalent of July in the Northern hemisphere and vice versa.
8-446: Janvier is French for the month of January . Janvier may also refer to: January Ancient Roman observances during this month include Cervula and Juvenalia, celebrated January 1, as well as one of three Agonalia , celebrated January 9, and Carmentalia , celebrated January 11. These dates do not correspond to the modern Gregorian calendar. January (in Latin, Ianuarius )
16-488: Is named after Janus , the god of beginnings and transitions in Roman mythology . Traditionally, the original Roman calendar consisted of 10 months totaling 304 days, winter being considered a month-less period. Around 713 BC, the semi-mythical successor of Romulus , King Numa Pompilius , is supposed to have added the months of January and February , so that the calendar covered a standard lunar year (354 days). Although March
24-711: The New Year in Europe during the Middle Ages , including March 25 ( Feast of the Annunciation ) and December 25. However, medieval calendars were still displayed in the Roman fashion with twelve columns from January to December. Beginning in the 16th century, European countries began officially making January 1 the start of the New Year once again—sometimes called Circumcision Style because this
32-447: The date listed, and end at sundown on the date in question. This list does not necessarily imply either official status or general observance. January 2 unless that day is a Sunday, in which case January 3 First Friday Second Saturday Second Monday Friday before third Monday Third Friday Sunday closest to January 22 Third full week of January Last full week of January Third Monday Wednesday of
40-641: The dispatch of aid, "they even made the new consuls enter into office two months and a half before the legal time" (March 15). January's birthstone is the garnet , which represents constancy. Its birth flower is the cottage pink Dianthus caryophyllus , galanthus or traditional carnation . The zodiac signs are Capricorn (until January 19) and Aquarius (January 20 onward). This list does not necessarily imply either official status or general observance. This list does not necessarily imply either official status or general observance. All Baha'i, Islamic, and Jewish observances begin at sundown prior to
48-482: Was first written in 1466 in the Škofja Loka manuscript. According to Theodor Mommsen , 1 January became the first day of the year in 600 AUC of the Roman calendar (153 BC), due to disasters in the Lusitanian War . A Lusitanian chief called Punicus invaded the Roman territory, defeated two Roman governors, and killed their troops. The Romans resolved to send a consul to Hispania , and in order to accelerate
56-490: Was originally the first month in the old Roman calendar, January became the first month of the calendar year either under Numa or under the Decemvirs about 450 BC (Roman writers differ). In contrast, each specific calendar year was identified by the names of the two consuls , who entered office on March 15 until 153 BC, at which point they started entering office on January 1. Various Christian feast dates were used for
64-575: Was the date of the Feast of the Circumcision , being the seventh day after December 25. Historical names for January include its original Roman designation, Ianuarius, the Saxon term Wulf-monath (meaning "wolf month") and Charlemagne 's designation Wintarmanoth ("winter / cold month"). In Slovene , it is traditionally called prosinec ; the name, associated with millet bread and the act of asking for something,
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