As a celebration of Christmas. I have included a link to Christmas around the World. Christmas is celebrated in slightly different ways around the world. For example, in Germany they have a few different traditions including:
According to legend, on Christmas Eve in Germany rivers turn to wine, animals speak to each other, tree blossoms bear fruit, mountains open up to reveal precious gems, and church bells can be heard ringing from the bottom of the sea. Of course, only the pure in heart can witness this Christmas magic. All others must content themselves with traditional German celebrating, of which there is plenty. As a matter of fact, there is so much celebrating that is has to begin on December 6th, St. Nicholas Day.
As in many other European countries, on the eve of Dec. 6th children place a shoe or boot by the fireplace. During the night, St. Nicholas, the patron saint of children, hops from house to house carrying a book of sins in which all of the misdeeds of the children are written. If they have been good, he fills the shoe or boot with delicious holiday edibles. If they have not been good, their shoe is filled with twigs.