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TIL that a Dutch microbiologist Hendrik Jonkers invented a self-healing concrete that uses bacteria to seal cracks

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gMk5y TIL that in Tang Dynasty China (600s-900s AD), women wearing men's clothing was a fashion trend. Normally a taboo in China, it was made acceptable by the Li Clan's (the Imperial Family's) women- notably Princess Pingyang- who actually commanded armies during the Dynasty's foundational wars.
rRBm4 TIL the red-capped manakin (Ceratopipra mentalis) is found in the tropical moist lowland forests of Central America. The bird is probably best known for the male's highly unusual and dazzling courting ritual (see video) whereby he shuffles rapidly backwards across a branch akin to a speedy moonwalk.
yKxV TIL Nutella is less nutritious than cake frosting
rLQo TIL The world is divided into 6 floral kingdoms. All these kingdoms encompass several countries. South Africa, which has a floral kingdom wholly contained within the country, is the one exception. The Cape Floral Kingdom has 9,600 plant species, 70% of which are not found anywhere else in the world
alx9 TIL; there have been at least 9 confirmed political assassinations in the United States since 2000