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TIL that in 2016, a scientific expedition climbing Mount Everest to study the link between hypoxia and cognitive decline had to turn back after its own members developed hypoxia

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ZppNv TIL Ibn Battuta was a Moroccan explorer who travelled extensively across Africa and Asia between 1325 and 1354. He travelled more than any other explorer in pre-modern history, from present-day Mali and Tanzania to Beijing - approximately five times the distance covered by Marco Polo.
PYwpO TIL about the Japanese retiree who uses Microsoft Excel as a painting platform because he didn't want to spend money on paints.
nWkOP TIL that at the Pendleton Correctional Facility, well-behaved prisoners are allowed to keep cats. These feline companions are believed to help in managing the prisoners' temperaments and are considered very beneficial for the convicts.
J11PQ TIL that Norse Paganism is the fastest growing and largest non-Christian religion in Iceland
4XKl6 TIL that Benjamin Lay, an early Quaker abolitionist, walked into the 1738 annual meeting of Quakers and during an abolition speech plunged a sword into a bible he had hollowed out and filled with a bladder full of red fruit juice. To horrified onlookers, the Bible appeared to be bleeding.