noun
knotted cord records; quipu
Historical term for a system of recording information using knotted strings, most famously associated with the Inca quipu.
インカ帝国では、結縄文字が行政記録に使われていた。
In the Inca Empire, quipu were used for administrative records.
Quipu represented information through the way the cords were knotted and their colors.