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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Gold-wrapped chocolate coins commemorate St Nicholas who gave bags of gold coins to the poor.
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Nearly 60 million Christmas trees are grown each year in Europe.
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The Christmas tree displayed in Trafalgar square in London is an annual gift to the UK from Norway since 1947. The Norwegian spruce given is a token of appreciation of British friendship during World War II from the Norwegian people.
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Carols began as an old English custom called wassailing, toasting neighbours to a long life.
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The first postage stamp to commemorate Christmas was issued in Austria in 1937.
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Black Friday in the UK is the Friday before Christmas. Instead of shopping, many people get very drunk!
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