Inca Pachacuti's Expansion in the 1460s

Timeline

1. 1461–1465Lake Titicaca highlands · CollasuyuPachacuti dispatched generals and royal armies southward, compelling highland chiefdoms such as the Colla and Llalla to submit or be absorbed into the imperial administrative system, bringing the Lake Titicaca area under the Collasuyu province and establishing local curacas to collect labor service and tribute.
2. 1465–1468Quito highlands · QuitosuyuIn the mid-to-late 1460s, Inca armies advanced north into the Ecuadorian highlands, fighting or allying with local powers such as the Cañari, incorporating the Quito direction into the empire's northern frontier plans and laying groundwork for Tupac Inca Yupanqui's further northern campaigns.
3. 1466–1470Imperial center of Cusco · CuscoNewly subjugated regions were incorporated into the empire through forced mitma resettlement, promotion of sun worship, and decimal administrative registration; Pachacuti still personally supervised the tribute system and road-relay construction late in the 1460s, turning expansion gains into sustainable imperial rule.