Inca Mita Labor Draft System

Timeline

1. c. 1200–1430Communities of the Cuzco Valley · Cuzco RegionDuring the Inca chiefdom period, communities already had a tradition of reciprocal labor (ayni), with members taking turns assisting in building houses and fields; no empire-wide unified draft and rotation cycle had yet formed.
2. c. 1431–1532Provinces of the Inca Empire · ChilePachacuti institutionalized the mita as an imperial tribute system: recording each community's labor quota with quipus, drafting laborers by region in turn to build the Sacsayhuamán fortress, imperial roads, and terraces; laborers were supplied with food and clothing by the state and returned to their home communities upon completion, with newly conquered regions also incorporated into the rotation system.
3. 1533–1824Potosí and other colonial sites · PotosíSpanish colonists retained the mita name but transformed it into forced mine labor (mita de minas), with the Potosí silver mines drafting about 13,000 people annually from the provinces; extreme exploitation caused a sharp decline in the Andean population, became a pillar of the colonial economy, and profoundly shaped later perceptions of the original imperial mita.