A new study suggests that the approximately 5,200 holes, known as the "Band of Holes" on Monte Sierpe in the Peruvian Andes, may have served as a barter and accounting site for the Chincha Kingdom between A.D. 1000 and 1400. After the Inca conquered the Chincha, the site might have been repurposed for collecting tribute and taxes.
Researchers used drone technology to analyze the holes, revealing a mathematical pattern in their layout, organized into s... download the app to read more
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