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Tayaho River, Peru

Photo: Canoes docked on Tayaho River in Peru
"The Great Dying" was the name Native Americans gave to the smallpox pandemic ignited by Spaniards in the 1500s. Indigenous peoples had no natural resistance to the virus, so it swept quickly through the Americas, from the Aztec Empire in Mexico to the Inca Empire of Peru's Amazon River Basin, shown here.
Photograph by Bill Hatcher

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