Incas: A red-skinned empire located on the Pacific coast (Peru, Colombia and neighboring countries) from 1438 to 1533 AD. With its capital in the city of "Cuzco" and the official language of "Quechua", they were far more advanced than other red-skinned civilizations. Monarchy among them was hereditary. This civilization is one of the few nations that mummified the bodies of their kings, and an interesting thing about them is a form of socialist behavior regarding agricultural land, meaning that land ownership is not private and is in the hands of the nobility. This empire was governed by a ruler and a royal council. It seems that their society had a class structure. The Inca Empire collapsed with the arrival of the Spaniards, and their territory was occupied by Spain.