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TIL that a practical joker once set 70 old tires on fire inside Mount Edgecumbe, a dormant volcano in Alaska. Local residents thought the volcano was erupting until they saw "APRIL FOOL" spray-painted in 50-foot letters around the rim of the crater. He had been planning the prank for four years.

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0wy5j TIL Sardinians split off from mainland Europeans about 4300-7000 years ago and have remained largely isolated genetically. They're the closest proxy to the Early European farmers who migrated all over Europe from Anatolia, introduced agriculture, and mostly replaced the European hunter-gatherers
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