How did Inca rule affect the languages and ethnic makeup of Bolivia?

Inca rule significantly shaped the linguistic and ethnic landscape of what is now Bolivia through a policy of colonization and relocation.1

Before the 15th-century Inca expansion, the Bolivian highlands were largely controlled by Aymara-speaking groups. While the Incas incorporated these territories into their empire, they allowed the Aymara to retain their language and ethnic identity because they were the most prominent non-Quechua-speaking group under Inca control.1

However, the Incas implemented a deliberate policy of relocating large numbers of Quechua speakers into Aymara territories. This pattern of colonization and non-assimilation established the foundation for Bolivia’s modern linguistic and ethnic makeup, where Quechua and Aymara remain the two primary Indigenous languages. Additionally, under the imperial system, the Inca strengthened local Aymara dynasties and introduced new cultural elements, including religious cults, myths, art styles, and a greater variety of foods.12