Rudolph the red-nosed reindeer was invented for a US firm's Christmas promotion in 1938.
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The world's tallest Xmas tree at 221ft high was erected in a Washington shopping mall in 1950.
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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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Many theologians estimate that Jesus wasn't born on December 25 but sometime in September between 6BC and 30AD.
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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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Gold-wrapped chocolate coins commemorate St Nicholas who gave bags of gold coins to the poor.
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The first Christmas card was designed in 1843 by J.C. Horsley.
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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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