The sun sets on 24 December at 3.55pm in the UK, and rises the following morning at 8.05am.
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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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The Queen's Christmas speech was first televised in 1957.
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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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Rudolph the red-nosed reindeer was invented for a US firm's Christmas promotion in 1938.
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Carols began as an old English custom called wassailing, toasting neighbours to a long life.
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Electric lights for trees were first used in 1895.
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