Quechua are Indian people of Peru who speak the Quechua languagea system of symbols that allow people to communicate with each other, also the MOST symbolic way that culture is passed down; Quechua is the language of the Inca civilizationa highly developed and advanced human society, associated with population density, writing and record-keeping, education, art, science, and complex political and social institutions, presently spoken by about seven million people in Peru, Bolivia, Chile, Argentina