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TIL that the Pantheon’s oculus serves as a natural heating and cooling system, this opening allows sunlight to illuminate the interior and helps regulate temperature. The open design also enables rainwater to enter, which drains through a sophisticated floor system

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R78Z6 TIL of the Memorial to Heroic Self Sacrifice, a London monument commemorating ordinary people who died saving the lives of others and who might otherwise have been forgotten.
neV4B TIL That in the 1500s, Incas had cotton armor so densely woven it could repel spears and arrows almost as well as metal armor
5vZQ TIL that in 1981 a cult incorporated a city in Oregon. The city, Rajneeshpuram, quickly grew until the commune became increasingly aggressive and eventually its leaders were charged with a variety of crimes
8e7kV TIL the kitti’s hog-nosed bat, AKA the bumblebee bat, is arguably the smallest mammal, measuring in at 1.1 to 1.3 inches in length and 2g in weight. They are also little home bodies, leaving their roosts for less than an hour a day for food.
OGjA7 TIL about Saint Marina the Monk, a 6th century woman who disguised herself as a male Monk to avoid marriage. Another woman falsely claimed her child belonged to Marina, believing she was a man, but Marina raised the child anyway. The truth of her real gender wasn't discovered until her death.