Blas Valera
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Blas Valera was a Roman Catholic priest of the Jesuit Order in Peru, a historian, and a linguist. The son of a Spaniard and an Andean woman, he was one of the first mestizo priests in Peru. He wrote a
Three signatures of Blas Valera (private collection, C. Miccinelli - Naples (Italy))
Quipu
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Quipu, also spelled khipu, are record-keeping devices fashioned from knotted cords. They were historically used by various cultures in the central Andes of South America, most prominently by the Inca
An Inca quipu, from the Larco Museum in Lima, Peru.
Representation of a quipu (1890)
Quipu in the Cleveland Museum of Art in Cleveland, Ohio.