World detoursSourced
A record made
of cords and knots.
Andean quipus recorded information with cords and knots. Used in Inca administration and other contexts, they include known systems for representing numbers.
Keeping records
does not require a pen.
Summary / translation: Unbubly · CC BY-SA 4.0
Source and reuse details
Quipu · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-09-30