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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Electric lights for trees were first used in 1895.
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The Queen's Christmas speech was first televised in 1957.
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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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Gold-wrapped chocolate coins commemorate St Nicholas who gave bags of gold coins to the poor.
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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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Robins on cards were a joke 150 years ago when postmen wore red tunics and were named after them.
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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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