Hmm,  let's learn a little bit? He, he! Who is Santa Klaus? 

I must admit I didn't know much about him so I decided to make a

 litle research.... Santa Klaus, legendary bringer of gifts at Christmas is
generally depicted as a fat, jolly man with a white beard, dressed in a red

 suit trimmed with white, and driving a sleigh full of toys drawn through

 the air by eight reindeer. Santa (also called Saint Nicholas  and Saint

 Nick) is said to visit on Christmas Eve, entering houses through the

 chimney to leave presents under the Christmas tree and in the stockings

 of all good children. Although this familiar image of Santa Claus is a

 North American invention of the 19th century, it has ancient European
roots and continues to influence the celebration of Christmas

throughout the world.

The historical Saint Nicholas was venerated in early Christian legend for saving storm-tossed sailors, defending young children, and giving generous gifts to the poor. Although many of the stories about Saint Nicholas are of doubtful authenticity (for example, he is said to have delivered a bag of gold to a poor family by tossing it through a window), his legend spread throughout Europe, emphasizing his role as a traditional bringer of gifts.

The Christian figure of Saint Nicholas replaced or incorporated various

 pagan gift-giving figures such as the Roman Befana and the Germanic
Berchta and Knecht Ruprecht. The saint was called Sankt Nikolaus in
Germany and Sanct Herr Nicholaas  or

Sinter Klaas in Holland. In these countries Nicholas was sometimes said to

 ride through the sky on a horse. He was depicted wearing a bishop's robes

and was said to be accompanied at times by Black Peter, an elf whose job

 was to whip the naughty children.The feast day day of Nicholas, when
presents were received, was traditionally observed on December, 6. After

the Reformation, German Protestants encouraged veneration of the

 Christkindl (Christ child) as a gift giver on his own feast day, December 25.