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TIL canaries were used in coal mines to detect carbon monoxide

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9Y68X TIL in 2001 India started building roads that hold together using polymer glues made from shredded plastic wastes. These plastic roads have developed no potholes and cracks after years of use, and they are cheaper to build. As of 2016, there are more than 21,000 miles of plastic roads.
7XQL TIL: Treadmills used to be used as punishment for prisoners in the 1800’s. The treadmills powered grain mills (hence the name treadmill) and pump water.
9YlQ6 TIL one of the largest earthquakes in North American history occurred on January 26, 1700. It was only documented by oral history in the First Nations populations, and collaborated by a Japanese record of a tsunami around the same time.
Nk46 TIL Habitual mouthbreathing can cause crowding of the teeth and drastically change the shape of your face.
OoYLL TIL when ‘The Shining’ premiered, the MPAA wouldn’t allow blood to appear in any trailer “approved for all audiences,” but Stanley Kubrick managed to get a trailer comprised solely of the elevator scene passed by convincing the board the tsunami of blood was rusty water.