A decade later Pachakuti sent out another army to the valley, this one led by his son and heir, Thupa Inka Yupanki (“Royal Honored Inka”). Thupa Inka closeted himself with the local leadership and laid out many inspired ideas for the valley’s betterment, all of which were gratefully endorsed. Following the Inka template, the local leaders drafted the entire populace into service, dividing households by sex and age into cohorts, each with its own leader who reported to the leader of the next larger group.
