Scientists Uncover Purpose Behind Thousands of Ancient Inca Holes in Peru

TL;DR Summary
A new study suggests that the 5,200 holes in Monte Sierpe, Peru, may have been used for barter, record-keeping, and tribute collection during the Inca era, based on drone analysis, patterning, and plant remnants found in the holes.
- Scientists may finally have an explanation for the centuries-old 5,200 mystery holes in the Peruvian Andes Live Science
- There Are Thousands of Aligned Holes in Peru. Researchers Think They Finally Know Why Gizmodo
- Mysterious holes in Andean mountain may be an Inca spreadsheet New Scientist
- Iconic Andean monument may have been used for Indigenous accounting Phys.org
- Why did the Inca dig thousands of holes in this mountain? We may now know. National Geographic
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