 In 1470 AD several Aymara kingdoms began rebelling against the Incas.The Incas however completely defeated two Aymara states and pacified the region overall by sending mitimas, Quechua-speaking colonists, to Aymara territories particularly to the southern valleys and to the more central valley regions where Cochabamba and Sucre were later founded.By the beginning of the 16th century the Incas had fully reestablished their rule.