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TIL Laughter evolved from labored breathing, and people are 24 times more likely to tell apart friends from strangers based on a short audio clip of the two groups laughing.

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4kOpN TIL Peseshet, who lived under The Fourth Dynasty of Egypt, is the earliest known female physician in history
wXwY TIL that the ancient Romans used urine as toothpaste, mouthwash and laundry detergent, the urine collection business was so lucrative that Emperors Nero and Vespasian imposed urine taxes.
78J4O TIL the first recorded strike in history happened in 1158BC in Ancient Egypt, the strikers demanded wheat rations, which was granted after a march to the office of the Vizier.
jNM8j TIL hungry men tend to be more attracted to women with higher body weight than men who have eaten.
4XgL5 TIL the Hawaiian Pizza was invented in Canada, and is the most popular pizza in Australia, accounting for 15% of pizza sales.