US scientists calculated that Santa would have to visit 822 homes a second to deliver all the world's presents on Christmas Eve, travelling at 650 miles a second.
The abbreviation Xmas isn't irreligious. The letter X is a Greek abbreviation for Christ.
Coca Cola was the first beverage company to use Santa for a winter promotion.
Gold-wrapped chocolate coins commemorate St Nicholas who gave bags of gold coins to the poor.
There are 13 Santas in Iceland, each leaving a gift for children. They come down from the mountain one by one, starting on December 12 and have names like Spoon Licker, Door Sniffer and Meat Hook.
One town in Indiana is called Santa Claus. There is also a Santa, Idaho.
Rudolph the red-nosed reindeer was invented for a US firm's Christmas promotion in 1938.
In 1999, residents of the state of Maine in America built the world's biggest ever snowman. He stood at 113ft tall.