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TIL after conquering China, by 1241 the Mongols were expanding their empire to the west, using Chinese rockets (self-propelled flying bombs) in battles across Eastern Europe. And with them came secret of black powder - the recipe was first written down around 1250 by English scholar Roger Bacon.

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bLO9 TIL there is a secured village in the Netherlands specifically for people with dementia, where they can act out a normal life while being monitored and assisted by caretakers in disguise.
9w8LX TIL Only 4% off all mamals on earth are wild animals. 96% of mamals are livestock and humans.
7rM4P TIL Essential Oils are not 'essential' or indispensible for the human body (like essential amino acids and essential fatty acids). The word 'essential' in Essential Oils simply means it contains the essence of the plant's fragrance.
pYnPe TIL that Fried Chicken was an expression first recorded in the 1830s, and frequently appears in American cookbooks of the 1860s and 1870s. Scottish frying techniques and African seasoning techniques were used together in the American South, and became increasingly popular after the Civil War.
xVNgB TIL The Antonov A-40 was a Soviet attempt to allow a tank to glide onto a battlefield after being towed aloft by an airplane. The tank had to be stripped most of it's armament, ammunition and headlights, however the prototype still failed.