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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Gold-wrapped chocolate coins commemorate St Nicholas who gave bags of gold coins to the poor.
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The Queen's Christmas speech was first televised in 1957.
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The abbreviation Xmas isn't irreligious. The letter X is a Greek abbreviation for Christ.
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The first postage stamp to commemorate Christmas was issued in Austria in 1937.
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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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