The Inca (also spelled as Inka) Empire was a South American empire that existed between the 15th and 16th centuries. The Inca Empire was the largest pre-Hispanic civilization in South America and ruled the area along the continent’s Pacific coast. At its height of power, the Inca Empire stretched from northern Ecuador all the way south to central Chile and ruled over a population of 12 million, from over 100 different ethnic groups.
https://www.ancient-origins.net/ancient-places-americas/inca-empire-0012840
