This merry postcard was sent by Heidi from Finland via postcrossin [FI-1177554]!
Santa Claus, or Santa, is a figure in North American culture with legendary, mythological and folkloric aspects, which reflect an amalgamation of the Dutch Sinterklaas, the English Father Christmas, and Christmas gift-bringers in other traditions. Santa Claus is said to bring gifts to the homes of good children during the late evening and overnight hours of Christmas Eve, December 24. Santa Claus in this contemporary understanding echoes aspects of hagiographical tales concerning the historical figure of gift-giver Saint Nicholas, the man from whom the name of Santa Claus derives and in whose honor Santa Claus may be referred to as Saint Nicholas or Saint Nick.
Santa Claus is generally depicted as a plump, jolly, white-bearded man wearing a red coat with white collar and cuffs, white-cuffed red trousers, and black leather belt and boots (images of him rarely have a beard with no moustache). This image became popular in the United States and Canada in the 19th century due to the significant influence of caricaturist and political cartoonist Thomas Nast. This image has been maintained and reinforced through song, radio, television, children's books and films. The North American depiction of Santa Claus as it developed in the 19th and 20th century in turn influenced the modern perceptions of Father Christmas, Sinterklaas and Saint Nicholas in European culture.
According to a tradition which can be traced to the 1820s, Santa Claus lives at the North Pole, with a large number of magical elves, and nine (originally eight) flying reindeers. Since the 20th century, in an idea popularized by the 1934 song "Santa Claus Is Coming to Town", Santa Claus has been believed to make a list of children throughout the world, categorizing them according to their behavior ("naughty" or "nice") and to deliver presents, including toys, and candy to all of the good boys and girls in the world, and sometimes coal to the naughty children, on the single night of Christmas Eve. He accomplishes this feat with the aid of the elves who make the toys in the workshop and the reindeer who pull his sleigh. [wikipedia]
On the postcard you can see Aurora borealis (or the northern lights), named after the Roman goddess of dawn, Aurora, and the Greek name for the north wind, Boreas, by Pierre Gassendi in 1621. Auroras seen near the magnetic pole may be high overhead, but from farther away, they illuminate the northern horizon as a greenish glow or sometimes a faint red, as if the Sun were rising from an unusual direction. The aurora borealis most often occurs near the equinoxes. The northern lights have had a number of names throughout history. The Cree call this phenomenon the "Dance of the Spirits". In Europe, in the Middle Ages, the auroras were commonly believed a sign from God (see Wilfried Schröder, Das Phänomen des Polarlichts, Darmstadt 1984).