The Inca Khipu: Ancient Data in Knotted Strings

Although the Incas did not have a writing system, they told stories, and traditions and passed important messages orally. However, the Incas also used colorful, knotted strings known as khipus. Although the knots in these ropes represented decimal numbers, there’s a high possibility that they represented something more deep. That’s why khipus have intrigued scholars […]