Andean Potato Cultivation

Timeline

1. c. -8000–-2000Lake Titicaca area · Puno RegionEarly peoples domesticated wild potato relatives at altitudes of three to four thousand meters, developing local varieties adapted to frost and drought, along with tuber selection and storage techniques.
2. 600–1400Cusco Basin · Cusco RegionCultures such as Wari and Tiwanaku, and later the Inca polity, incorporated potatoes into terrace-irrigation systems, forming vertical agricultural zones with maize and quinoa.
3. 1421–1430Highland provinces of the Inca Empire · Inca EmpirePotatoes supported military expeditions and famine relief through qollqa storage and chuño freeze-drying; varieties were exchanged across the empire, creating a system combining central rationing with local seed preservation.
4. 1570Europe and global temperate agricultural zones · EuropeDuring the colonial period the potato spread to Europe and became an important staple; modern breeding and industrial processing have made it the world's fourth-largest food crop.