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TIL An group of archaeologists have found trousers—worn between 3K and 3.3K yrs ago—in a tomb in W China. The trousers were invented for horse riding by Chinese pastoralists and are the oldest known examples of this kind of apparel. The trousers are formed from three separately woven pieces.

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LJYd TIL that during the Great Famine, Ireland continued to export enormous quantities of food to England. This kept food prices far too high for the average Irish peasant to afford and was a major contributing factor in the large death toll from the famine.
vgyL TIL American pediatrician Saul Krugman deliberately infected thousands of mentally disabled children with Hepatitis B between 1950-1972 to further his research in vaccinology. He was made president of the American Pediatric Society in 1972.
QJ81E TIL that the entomologist Justin O. Schmidt created the ''Schmidt sting pain index''. This scale rates the pain from stings of ants, wasps and bees. While getting stung by a warrior wasp, he told to himself: ''Torture. You are chained in the flow of an active volcano. Why did I start this list?''.
Y7pVZ TIL around Jesus' time, Nazareth had a population of around 400. Now it's close to 80,000.
vP4eD TIL there are 50 countries with a higher home ownership rate than the US