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[Sci-Am] Inka History in Knots (Book Review) - Scientific American - 2019-06-13
Inka History in Knots (Book Review)
Gary Urton explains what we can and cannot know about Inka khipus
-- Read more on ScientificAmerican.com
https://blogs.scientificamerican.com/roots-of-unity/inka-history-in-knots-book-review/