A recently studied 500-year-old Inca khipu (Quipu) has overturned assumptions about who created these intricate thread-based documents. The study, published in Science Advances, suggests that khipus—formerly thought to be the domain of high-level imperial officials—were also made by non-elite members of society. Khipus were the Inca Empire’s unique system of record-keeping. Comprising a main cord […]
