quipus

the ancient incas used quipu for record-keeping.

quipu was a complex system of knots and strings.

researchers are studying quipu to understand inca history.

each knot in a quipu represents a different number.

quipu served as a means of communication for the incas.

historians decipher quipu to learn about ancient economies.

the use of quipu declined after the spanish conquest.

quipu was not only a counting tool but also a storytelling device.

some quipu had colored strings to denote different categories.

quipu remains a fascinating subject for archaeologists.