Before 1940, there was a profession called knocker ups in Britain, whose sole purpose was to wake people up so they aren't late for work.

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Sea otters will hold hands while they're sleeping, so they don't drift apart.

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Eating dates in the last 4 weeks before labour helps with birth.

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In Brazil, the Juruena River flows underground through caves, creating a ‘ghost river.’ Locals call it sacred due to its mystical sound.

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The McDonald's Gold Card, which allows you to order food for the rest of your life, absolutely free.

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Grand Theft Auto was originally a racing game called Race’n’Chase, however a glitch made the police cars go crazy, ramming the player. This glitch was so popular with testers that they rebuilt the game around it, creating GTA.

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In France, it's illegal to publish photographs of handcuffed suspects until they've been convicted.

Doing so before a conviction is a threat to personal dignity; as they would appear to be guilty anyway.

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The smell of cinnamon improves cognitive function and memory.

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The very first computer weighed 30 tons and looked like this.

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In Australia, Lake Hillier has bright pink water. The color comes from algae that produce a pigment, and it doesn’t fade even in a bottle! Scientists are still studying why the lake is so unique, but swimming is prohibited.

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Getting less than 6 hours of sleep each night can decrease life expectancy.

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To protect paintings from rodents, around 70 cats work at the Hermitage.

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When a person dies, his sense of hearing is the last to go.

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Research suggests that spending money on experiences rather than material possessions tends to bring people more happiness in the long run.

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Sheffield FC is the oldest soccer club recognised by FIFA, having been founded in October 1857.

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Son Doong in Vietnam is the largest cave in the world. There is a fast subterranean river flowing inside it, trees growing up to 3 meters high, and even real clouds are formed under the vaults due to the great temperature difference!

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Cherophobia (fear of happiness) is an attitude towards happiness in which individuals may deliberately avoid experiences that invoke positive emotions or happiness because they think something bad will happen after.

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