Christmas Eve.

Santa Claus, a mysterious figure who secretly delivers gifts to children on Christmas Eve, is one of the representative characters of the holiday theme. Legend has it that on the night of December 24th every year, a mysterious man would fly into the house from the chimney on a sleigh pulled by nine reindeer, and then secretly put gifts in the socks on the beds of good children, or Stack them under the Christmas tree by the fireplace.

Santa Claus originated from the allusions of European Christian saints. Santa Claus has nine reindeer with different names. The biggest concern is that fewer and fewer houses have chimney climbs. Parents often explain to their children that the gifts they receive at Christmas come from Santa Claus.

Extended information:

The legend of Santa Claus:

The legend of Santa Claus appeared in Scandinavia thousands of years ago. The god Odin in Norse mythology. In the cold winter, the god Odin rides on his eight-legged horse and gallops to the ends of the earth, punishing evil, promoting good, and distributing gifts. As for the real Santa Claus, some legends say he is a descendant of the god Odin, some say he is Saint Nicholas, the bishop of the city of Myra in Asia Minor, and some say he is a philanthropic old man named Nicholas.

Baidu Encyclopedia - Santa Claus

People's Daily Online - Santa Claus is the god Odin in Norse mythology? His legend appeared thousands of years ago