The Inca Empire flourished from 1200-1532 AD in the Andes Mountains of western South America. It was founded by Pacachuti and had its capital in Cuzco. The Inca were ruled by an emperor called the Sapa Inca, who had absolute control. They developed an extensive road network and practiced organized agriculture, growing crops like corn and potatoes. The Inca also had a complex religion with Inti as the sun god and engaged in child sacrifice during important events. The Spanish led by Francisco Pizarro conquered the weakened Inca Empire after a civil war in 1531 AD.