The sun sets on 24 December at 3.55pm in the UK, and rises the following morning at 8.05am.
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7.6 million Christmas trees are sold each year.
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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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The definition of a white Christmas in the UK is for a single snow flake (perhaps amongst a shower of mixed rain and snow) to be observed falling in the 24 hours of December 25th.
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Although now mostly vegetarian, in Victorian times, mince pies were made with beef and spices.
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In 1999, residents of the state of Maine in America built the world's biggest ever snowman. He stood at 113ft tall.
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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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