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Code of the Quipu is a book on the Inca system of recording numbers and other information by means of a quipu, a system of knotted strings.It was written by mathematician Marcia Ascher and anthropologist Robert Ascher, and published as Code of the Quipu: A Study in Media, Mathematics, and Culture by the University of Michigan Press in 1981.
Inca Quipus, fundamental elements in the administration and accounting of the Inca Empire. The quipus constituted a mnemonic system based on knotted strings used to record all kinds of quantitative or qualitative information; if they were dealing with the results of mathematical operations, only those previously performed on the "Inca abacuss ...
Inca textiles. Awasaka was the most common grade of weaving produced by the Incas of all the ancient Peruvian textiles, this was the grade most commonly used in the production of Inca clothing. Awaska was made from llama or alpaca wool and had a high thread count (approximately 120 threads per inch).
Leslie Leland Locke (1875–1943) [1] was an American mathematician, historian, and educator, best known for his work on deciphering ancient Andean knot records called quipus. Locke's most prominent work, The Ancient Quipu or Peruvian Knot Record (1923), demonstrated how the Inca tied knots on quipu cords using a base-10 positional number ...
Making the matter even more complex, the Inca 'kept separate "khipu" for each province, on which a pendant string recorded the number of people belonging to each category.' [35] This creates yet another step in the process of decryption in addition to the Spanish attempts at eradicating the system. [36]
The chakana (Andean cross, "stepped cross" or "step motif" or "stepped motif") is a stepped cross motif used by the Inca and pre-incan Andean societies. The most commonly used variation of this symbol today is made up of an equal-armed cross indicating the cardinal points of the compass and a superimposed square.
Inca agriculture was the culmination of thousands of years of farming and herding in the high-elevation Andes mountains of South America, the coastal deserts, and the rainforests of the Amazon basin. These three radically different environments were all part of the Inca Empire (1438-1533 CE) and required different technologies for agriculture .
Predating Pomo de Ayala's writings, in 1596 The Jesuit father José de Acosta wrote: Well, seeing another group which uses kernels of corn is an enchanting thing, as a very embarrassing account, which he will have a very good accountant do by pen and ink, to see how each contribution fits with so many people, taking so much from over there and adding so much from here, with another hundred ...