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TIL Though the royal figures on modern playing cards do not represent actual people, names were assigned to them: Charlemagne (hearts), David (spades), Caesar (diamonds), and Alexander (clubs). The names of the queens — Judith or Judic (hearts), Pallas (spades), Rachel (diamonds), and Argine (clubs)

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d8laE TIL that after a heart transplant you'll have a resting pulse of around 90 bpm since the vagus nerve that usually regulates heart rate is cut during the transplant. The heart will still beat faster during exercise due to its internal regulatory mechanism, but the new "idle" will be around 90 bpm.
no6d TIL workers at Amazon’s distribution centres can be expected to walk up to 11 miles per shift, picking an order every 33 seconds.
16vl4 TIL There are fossilized plants in Greenland under 1.4 km of ice. At the bottom of a 1.4 km core sample, which was taken in 1966 at Camp Century, researchers found "well-preserved fossil plants and biomolecules," which means that the massive sheet melted and reformed at least once in the last millio
Bepx TIL France tried stop Amazon offer free shipping to its customers by fining them €1,000 per day. Amazon continued to pay the fines instead of ending its policy of offering free shipping. After law was created banning free shipping, Amazon effectively snubbed it by charging one cent for delivery.
MeoWB TIL that for decades the CIA owned and ran Crypto, a Swiss company that supplied cryptography equipment to many countries; naturally, the machines were rigged to give US spooks access to everyone's communications.