Peruvian citadel is site of earliest ancient solar observatory in the Americas

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Simplified diagram of how the solar observatory would have worked. Credit: Courtesy of Ivan Ghezzi
Simplified diagram of how the solar observatory would have worked. Credit: Courtesy of Ivan Ghezzi

Archeologists from Yale and the University of Leicester have identified an ancient solar observatory at Chankillo, Peru as the oldest in the Americas with alignments covering the entire solar year, according to an article in the March 2 issue of Science.


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