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TIL Until the 18th century, India was the only source of diamonds in the world for nearly 2325 years. When the Indian diamond mines were depleted, the quest for alternate sources began and this led to discovery of diamonds in Brazil in 1725,

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abXN TIL that from its discovery in 1947 until 2007, there were only 14 confirmed human cases of Zika infection worldwide. In the past two years there have been an estimated 1.5 million infections in Brazil alone.
6w6Z TIL a ‘Glove Compartment’ or 'Glove Box’ originally was created to hold driving gloves which were considered necessary equipment in early cars, many without a hard top, to prevent the cooling effect of fast-moving air from numbing drivers’ hands.
69brl TIL about the rare phenomenon of an "en caul" birth, where a baby is born still enclosed within the amniotic sac. Unlike typical births, where the sac breaks before delivery, in these cases, the baby emerges in a transparent bubble-like membrane. This occurrence is less than 1 in 80,000 births
78pEp TIL nine women, called "The 9 Nanas," kept a decades-long secret that even their husbands knew nothing about. For 30 years, they gathered at 4 a.m. to bake cakes, send care packages to people, anonymously pay bills and buy clothes for those in need.
rNNgd TIL that a mathematical model can explain why we cannot find "aliens": it's likely we are one of the early species able to evolve to this point. If we survive to ourselves, chances are that we will become the "grabby aliens" that we cannot find.