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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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.
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'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".
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The Queen's Christmas speech was first televised in 1957.
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The poinsettia is a traditional Christmas flower. In Mexico (its original birthplace), the poinsettia is known as the "Flower of the Holy Night".
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The abbreviation Xmas isn't irreligious. The letter X is a Greek abbreviation for Christ.
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Gold-wrapped chocolate coins commemorate St Nicholas who gave bags of gold coins to the poor.
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Coca Cola was the first beverage company to use Santa for a winter promotion.
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