Quechua, the language of the Incas, bears only a distant relationship to Aymará, the language spoken in the vicinity of Lake
Titicaca. It is not known what the Incas spoke before Quechua was made their official language by the Inca Pachacuti in 1438.
Because of their conquests and their system of population transference, Quechua eventually became the dominant language. It
is to this day spoken by a large percentage of Peru's inhabitants.