People of the Huarpa culture and the later Wari culture (500–1000 CE) built terraces into the hillsides of the Andes in Peru. During the Inca Empire (1438–1533 CE) the technology and the quantity of land devoted to andenes reached their highest levels. Archaeologists estimate that andenes covered about  of land and contributed substantially to feeding the approximately ten million people ruled by the Incas.
The Huarpa culture and Wari culture (500–1000 CE) built terraces on Peruvian hillsides. During the Inca Empire (1438–1533 CE), the technology for andenes and the amount of land dedicated to them reached their highest levels. Archaeologists estimate that andenes covered about one-third of the land, substantially aiding in feeding approximately ten million people under Incan control.