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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Christmas trees become popular in the UK from 1841 when Prince Albert erected a tree in Windsor Castle following a German tradition. Fir trees have been decorated at Christmas time in Germany since the 8th century.
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The poinsettia is a traditional Christmas flower. In Mexico (its original birthplace), the poinsettia is known as the "Flower of the Holy Night".
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Nearly 60 million Christmas trees are grown each year in Europe.
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'Klaxon' is a name that does not belong to one of Santa's reindeer. A klaxon is actually a powerful electric horn. Its name comes from a German word meaning "shriek".
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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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Robins on cards were a joke 150 years ago when postmen wore red tunics and were named after them.
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