Quipus (or khipus), sometimes called talking knots, were recording devices historically used in the region of Andean South America. A quipu usually consisted of colored, spun, and plied thread or strings from llama or alpaca hair. It could also be made of cotton cords. The cords contained numeric and other values encoded by knots in a base ten positional system. Quipus might have just a few or up to 2,000 cords.
Archaeological evidence has shown that systems similar to the quipu were in use in the Andean region from c. 3000 BC. They subsequently played a key part in the administration of Tahuantinsuyu, the empire controlled by the Incan ethnic group, which flourished across the Andes from c. 1450 to 1532 AD. As the region was subsumed under the invading Spanish Empire, the use of the quipu faded from use, to be replaced by European writing systems.
Quipucamayocs (Quechua khipu kamayuq, "khipu-authority"), the accountants of Tawantinsuyu, created and deciphered the quipu knots. Quipucamayocs could carry out basic arithmetic operations, such as addition, subtraction, multiplication, and division. They kept track of mita, a form of taxation. The quipucamayocs also tracked the type of labor being performed, maintained a record of economic output, and ran a census that counted everyone from infants to "old blind men over 80". The system was also used to keep track of the calendar. According to Guaman Poma, quipucamayocs could "read" the quipus with their eyes closed.
Quipucamayocs were from a class of people, "males, fifty to sixty", and were not the only members of Inca society to use quipus. Inca historians used quipus when telling the Spanish about Tahuantinsuyu history (whether they only recorded important numbers or actually contained the story itself is unknown). Members of the ruling class were usually taught to read quipus in the Inca equivalent of a university, the yacha-huasi (literally, "house of teaching"), in the third year of schooling, for the higher classes who would eventually become the bureaucracy.
Edited by the L, 06 August 2013 - 01:43 PM.