Rudolph the red-nosed reindeer was invented for a US firm's Christmas promotion in 1938.
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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
Robins on cards were a joke 150 years ago when postmen wore red tunics and were named after them.
20
Many theologians estimate that Jesus wasn't born on December 25 but sometime in September between 6BC and 30AD.
42
Although now mostly vegetarian, in Victorian times, mince pies were made with beef and spices.
14
One town in Indiana is called Santa Claus. There is also a Santa, Idaho.
122