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TIL Concrete Used in Ancient Rome was More Durable Than the Concrete Used Today

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R7QRl TIL that puffins can use sticks to scratch their itches. This is the first evidence that seabirds can use tools.
OooD6 TIL Brazilian footballer Carlos Kaiser staged his whole career for 24 years: he could barely kick a ball. In the first training session with every new team, the con man usually suffered a "muscle injury" that would keep him out for an indefinite period.
4XVkb TIL Russia has been stripped of 51 Olympic medals due to doping violations , 1/3 of the global total.
16oo8 TIL The Unabomber, Ted Kaczynski, was only caught because he sent a 35,000 word essay to the FBI explaining his motives and views, which helped to identify him. Before that, he had been operating for 17 years with the FBI having very little idea or leads to his identity.
BAEK TIL Jack Daniel, founder of Jack Daniel’s Whiskey, died due to kicking a safe that wouldn’t open and later contracting blood poisoning.