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.
415
Electric lights for trees were first used in 1895.
62
'Klaxon' is a name that does not belong to one of Santa's reindeer. A klaxon is actually a powerful electric horn. Its name comes from a German word meaning "shriek".
3
Robins on cards were a joke 150 years ago when postmen wore red tunics and were named after them.
20
Rudolph the red-nosed reindeer was invented for a US firm's Christmas promotion in 1938.
113
Black Friday in the UK is the Friday before Christmas. Instead of shopping, many people get very drunk!
10
In 1999, residents of the state of Maine in America built the world's biggest ever snowman. He stood at 113ft tall.
103
The Queen's Christmas speech was first televised in 1957.
18