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TIL in early 1900, It was common to give dentures as a wedding gift in Britain, Denmark and some parts of Canada, as it was expected that all teeth would eventually be lost, and the gift was thought to help ease the cost of replacement of teeth.

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ENQd TIL If a Helicopter’s engines fail midair they use a state of flight called ‘autorotate’, which allows them to land safely. This system uses air going up towards the main rotors as the chopper is falling; causing the main rotors to spin and generate enough lift for a controlled emergency descent.
LoJr TIL that Magpies are the smallest animal proven to recognize themselves in a mirror. Human Children recognize their own reflection from 15 to 18 months, before then seeing the reflection as a “sociable playmate”
7rJa7 TIL that the Ocean sunfish (in french we call it: moonfish) is one of the heaviest known bony fishes in the world, weighing up to a ton, for an average length of 1.8 m (5.9 ft).
5V7LP TIL there have been 6 different designs on the US Dime since it’s inception back in 1792
0wJJv TIL in 1976 a woman sued Disney for $150,000 in damages, claiming one of the Three Little Pigs fondled her at "It's a Small World" and that she gained 50 lbs (23 kg) as a result. The case was dropped when the costume was found to have "inoperable stub arms," making said fondling impossible.