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.
People of the Huarpa culture and later Wari culture (500–1000 CE) constructed terraces on the hillsides of Peru. During the Inca Empire (1438–1533 CE), the technology and quantity of land used for andenes reached their peak levels. Archaeologists estimate that andenes covered approximately one-third of the land area, significantly contributing to feeding around ten million people under Incan rule.