Robins on cards were a joke 150 years ago when postmen wore red tunics and were named after them.
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7.6 million Christmas trees are sold each year.
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Electric lights for trees were first used in 1895.
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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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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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The sun sets on 24 December at 3.55pm in the UK, and rises the following morning at 8.05am.
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Frumenty was a spiced porridge, enjoyed by both rich and poor. It was a forerunner of modern Christmas puddings. It is linked in legend to the Celtic god Dagda, who stirred a porridge made up of all the good things of the earth.
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The abbreviation Xmas isn't irreligious. The letter X is a Greek abbreviation for Christ.
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