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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Many theologians estimate that Jesus wasn't born on December 25 but sometime in September between 6BC and 30AD.
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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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Santa Claus has many different names around the world including Father Christmas in the UK, Pere Noel in France, Kriss Kringle in Germany, La Befana in Italy, Julinesse in Denmark, Dedushka Moroz (meaning Grandfather Frost) in Russia and the Three Kings i
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The first Christmas card was designed in 1843 by J.C. Horsley.
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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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In Greek legend, malicious creatures called Kallikantzaroi sometimes play troublesome pranks at Christmas time. In order to get rid of them, salt or an old shoe is burnt. The pungent burning stench drives off, or at least helps discourage, the Kallikantza
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