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TIL about Vulcan point, which is an island in a lake in a volcano, in a bigger lake inside another island inside the Pacific Ocean

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via reddit.com

xebB TIL that the term “third world” refers to the political allegiance of a country and has nothing to do with its level of development.
mxgbx TIL about "Georgian swimming" - a swimming style where swimmer's hand and feet are bound together. It was re-discovered in the 60es after a swimming enthusiast decided to fact-check a legend about ancient warriors training by swimming in this manner.
6Er6Y TIL there are glasses that can fix my colorblindness and im too terrified to try them.
8aKO4 TIL of The Essex, an American ship which was attacked by a sperm whale in 1820. The 20-man crew set out in the surviving life boats for several months, resorting to drawing lots to decide who would be sacrificed and consumed. 8 men survived. The story was the inspiration for the novel 'Moby Dick'.
jNMMN TIL Disney is the second largest buyer of explosives in US, right behind Department of Defense!