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TIL Centenarians tend to be small people, even allowing for shrinkage & secular growth. Okinawans have the greatest concentration of them, 500/million, the average male of which is just 148.3 cm (4'10½") & female 138.8 cm (4'6 1/2½").

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GApV5 TIL: Contrary to the popular belief, alligators are excellent climbers able to climb trees, over fences, and even stairs. Alligators can also jump 6 feet out of water and sprint at 20 mph.
larB TIL India was the first country to develop extraction and purifying techniques of Sugar in 350 AD. The technique then reached Persia and from there the knowledge was transferred to the World.
EOxW TIL Semantic Satiation is the psychological phenomenon in which repetition causes a word or phrase to temporarily lose meaning for the listener, who then processes the speech as repeated meaningless sounds.
oBrlR TIL it is not until around the fifth month that the eyes are capable of working together to form a three-dimensional view of the world and begin to see in depth.
ADplB TIL of Marcus Crassus the creator of the first Roman fire brigade, employing 500 slaves. At the first cry of help, they would stand while Crassus offered to buy the building for cheap. If refused, he let it burn and simply rebuilt it with slave labour. He is often called "The richest man in Rome".