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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Black Friday in the UK is the Friday before Christmas. Instead of shopping, many people get very drunk!
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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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"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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In Scotland it is illegal to be a drunk in possession of a cow.
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English sailors were referred to as "limeys" because sailors added lime juice to their diet to combat scurvy.
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Omar bin Laden (Osama's son) was denied citizenship in Britain in 2007 because "Omar failed to provide his father's permanent address".
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