Ayar: Children of the Sun

"A quipu usually consists of cotton or camelid fiber cords, and contains categorized information based on dimensions like color, order and number. The Inca, in particular, used knots tied in a decimal positional system to store numbers and other values in quipu cords. Depending on its use and the amount of information it stored, a given quipu may have anywhere from a few to several thousand cords.…