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.
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7.6 million Christmas trees are sold each year.
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The Queen's Christmas speech was first televised in 1957.
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Gold-wrapped chocolate coins commemorate St Nicholas who gave bags of gold coins to the poor.
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The sun sets on 24 December at 3.55pm in the UK, and rises the following morning at 8.05am.
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The twelve days of Christmas are the days between Christmas Day and Epiphany (6th of January) and represent the length of time it took for the wise men from the East to visit the manger of Jesus after his birth.
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The tradition of putting tangerines in stockings comes from 12th-century French nuns who left socks full of fruit, nuts and tangerines at the houses of the poor.
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