This is the main category for all blogs
One of the great mysteries of ancient South America is the Inka “writing” system using knotted, colored cords for graphic communication. Despite important insights from researchers, our understanding of how these cords recorded information is still in its infancy. This hybrid khipu/alphabetic text from the Central Andes may provide clues as to how khipus were “read”. Because much of its written text is obscured by bat urine and dirt, multispectral imaging was used to reveal the hidden words.