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TIL The rock at the summit of Mount Everest is marine limestone and would have been deposited on the seafloor around 450 million years ago.

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wLXbE TIL It took 4 hours for pigeon to transfer 4GB over 60miles - in the same time the ADSL had sent only 4% of the data.
8eP78 TIL that the Hundred Acre Wood in the original Winnie-the-Pooh books isn't the name of the forest where Pooh and all his friends live. Rather, it is a specific place inside The Forest, centered on Owl's house
l7lx5 TIL that a yoga practice called khecarī mudrā consists of gradually severing part of the tongue in order to curl it back further than what is naturally possible until the practitioner can reach the inside of their own nasal cavity.
xVP71 TIL Georgia Tann became a millionaire in the 1930s by babynapping poor people's children, falsifying birth records, and selling them to rich families out of state for upwards of $5,000 (around $91,000 today) such as Joan Crawford and wrestler Ric Flair's adoptive parents.
YpMP TIL Andrew Jackson being on the US $20 is ironic, because he warned the public against using paper money