Inca Pachacuti's Expansion

Timeline

1. 1440–1443Cusco · PeruAfter repelling the Chanka threat, Pachacuti reorganized royal lineage narratives and administrative institutions, shaped Cusco into a sacred capital, and began unifying surrounding peoples through an ideology of 'Children of the Sun'.
2. 1443–1447Urubamba Valley · PeruInca armies advanced along the Urubamba Valley and the Apurímac highlands, conquering or absorbing multiple local chiefdoms, bringing the Sacred Valley's agricultural zones into the imperial tribute system, and building early relay roads.
3. 1447–1449Cochabamba highlands · BoliviaExpanding forces reached the eastern Bolivian highlands and the northern shore of Lake Titicaca, incorporating newly conquered areas into the Inca administrative network through forced resettlement (mitmae) and investiture of local elites.