In ancient Rome, if a patient died during surgery, the doctor's hands were cut off

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In the US state of Alabama, there is a ban on sprinkling salt on railway tracks

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Running improves memory and brain activity

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All monkeys laugh if you tickle them

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Birthdays are not celebrated in the Maldives. In fact, they don't even try to remember the date

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11% of people on earth are left-handed

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The Moscow Kremlin is the world's largest medieval fortress. The total length of the Kremlin walls is 2,235 metres

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Colour change, depending on where you live

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Flamingos do not turn pink from birth, but because of their diet. They eat blue-green seaweed, which turns pink during digestion

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The verb "set" has 430 meanings - it is the most polysemous word in the English language

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In Japan, tattoos are associated with the criminal world. People with visible tattoos are banned from many places

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The Hawaiian alphabet has 13 letters

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The cologne (fr. eau de Cologne) first appeared in the German city of Cologne

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Tomatoes contain choline, which helps lower blood cholesterol levels, promotes haemoglobin formation and strengthens the immune system

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Raccoons have thousands of receptors on their paws, allowing them to detect object properties with great accuracy

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A domestic cat can reach speeds of up to 50 kilometres per hour over short distances

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The first jeans were all indigo and the dye was made from ashes

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Your fingerprints have 40 unique characteristics and your iris has 256

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Kiwis are great for losing weight and boosting your immune system

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Horses have a great memory. They can remember their abuser for life, but they don't forget their friends either

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The ship's vaults on the Titanic held $250 million worth of diamonds

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