The Canadian province of New Brunswick (which was part of the UK at the time) had a bloodless war with the US state of Maine in 1839
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On April Fool's Day in 1977, the UK newspaper The Guardian ran a 7 page feature on the discovery of the fictitious island nation of "San Seriffe."
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Hoover vacuum cleaners were so popular in the UK that many people now refer to vacuuming as hoovering.
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In England, there's a phenomenon called the "half-time kettle effect" where power use surges at half-time during England's matches in the World Cup as everyone turns on their tea kettles at the same time.
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The Queen of England, who once enjoyed extensive powers and authority over almost the whole world, and despite all her present majesty and glory, is not allowed to enter the House of Commons simply because she is not its member!
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The Queen and her husband are both great-grandchildren of Queen Victoria.
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"Big Ben" in London isn't a tower, the bell inside the tower is called "Big Ben", the tower itself is called "The Elizabeth Tower".
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The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
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