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  2. Inca technology - Wikipedia

    en.wikipedia.org/wiki/Inca_technology

    Inca's infrastructure and water supply system have been hailed as “the pinnacle of the architectural and engineering works of the Inca civilization”. [1] Major Inca centers were chosen by experts who decided the site, its apportionment, and the basic layout of the city. In many cities we see great hydraulic engineering marvels.

  3. List of pre-Columbian inventions and innovations of ...

    en.wikipedia.org/wiki/List_of_pre-Columbian...

    The ancient Peruvians would mix the ground bark of cinchona trees with water to eliminate the bark's bitter taste, and then drink the resultant tonic water to soothe their nerves and senses. Quipu – quipus were developed by the ancient Andeans. Quipus mimic an accounting, record-keeping, and communication system that uses knots and strings in ...

  4. History of the Incas - Wikipedia

    en.wikipedia.org/wiki/History_of_the_Incas

    The Inca state was known as the Kingdom of Cuzco before 1438. Over the course of the Inca Empire, the Inca used conquest and peaceful assimilation to incorporate the territory of modern-day Peru, followed by a large portion of western South America, into their empire, centered on the Andean mountain range.

  5. Inca Empire - Wikipedia

    en.wikipedia.org/wiki/Inca_Empire

    The Inca referred to their empire as Tawantinsuyu, [13] "the suyu of four [parts]". In Quechua, tawa is four and -ntin is a suffix naming a group, so that a tawantin is a quartet, a group of four things taken together, in this case the four suyu ("regions" or "provinces") whose corners met at the capital.

  6. Inca road system - Wikipedia

    en.wikipedia.org/wiki/Inca_road_system

    The Inca road system (also spelled Inka road system and known as Qhapaq Ñan [note 1] meaning "royal road" in Quechua [1]) was the most extensive and advanced transportation system in pre-Columbian South America. It was about 40,000 kilometres (25,000 mi) long.

  7. Inca aqueducts - Wikipedia

    en.wikipedia.org/wiki/Inca_aqueducts

    The Inca aqueducts refer to any of a series of aqueducts built by the Inca people. The Inca built such structures to increase arable land and provide drinking water and baths to the population. Due to water scarcity in the Andean region, advanced water management was necessary for the Inca to thrive and expand along much of the coast of Peru ...

  8. Quipu - Wikipedia

    en.wikipedia.org/wiki/Quipu

    In 1912 anthropologist Leslie Leland Locke published "The Ancient Quipu, A Peruvian Knot Record," American Anthropologist, New Series I4 (1912) 325–332. This was the first work to show how the Inca (Inka) Empire and its predecessor societies used the quipu (Khipu) for mathematical and accounting records in the decimal system.

  9. Mathematics of the Incas - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_the_Incas

    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 ...