Robins on cards were a joke 150 years ago when postmen wore red tunics and were named after them.
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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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'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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Carols began as an old English custom called wassailing, toasting neighbours to a long life.
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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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7.6 million Christmas trees are sold each year.
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At Christmas, it is traditional to exchange kisses beneath the mistletoe tree. In ancient Scandinavia, mistletoe was associated with peace and friendship. That may account for the custom of "kissing beneath the mistletoe".
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