Some things I've learned while in Peru that I thought were interesting:
* Peru is one of the "Cuna Civilizations" -- one of the 6 regions of the world where civilization developed independent of the influence of any other
* El Niño brings torrential rains every 18-25 years to Peru's northern coast. Archaeologist Rafael Larco calculated the age of the cultures he identified by measuring the alternating layers of sand between the marks left by flooding.
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