December is the 12th and last month of the year in the Julian and Gregorian Calendars and one of seven months with the length of 31 days. December starts on the same day as September every year and ends on the same day as April every year.
In Latin, decem means "ten". December was also the tenth month in the Roman calendar until a month less winter period was divided between January and February.
December's [flower] is the narcissus or holly. December's birthstones are turquoise, lapis lazuli, zircon, topaz (blue), or tanzanite.
December is the month with the shortest daylight hours of the year in the Northern Hemisphere and the longest daylight hours of the year in the Southern Hemisphere.
December in the Northern Hemisphere is the seasonal equivalent to June in the Southern Hemisphere and vice versa.
In the Northern hemisphere, the beginning of the meteorological winter is 1 December. In the Southern hemisphere, the beginning of the meteorological summer is 1 December
The Très Riches Heures du Duc de Berry or simply the Très Riches Heures
(The Very Rich Hours of the Duke of Berry) is a richly decorated book of hours
(containing prayers to be said by the lay faithful at each of
the canonical hours of the day) commissioned by John, Duke of Berry,
around 1410. It is probably the most important illuminated manuscript
of the 15th century, "le roi des manuscrits enluminés"
("the king of illuminated manuscripts").