The Inca Empire flourished from 1200-1532 AD in the Andes Mountains of western South America. They were led by an emperor called the Sapa Inca who had absolute control over the large empire. The Incas developed advanced infrastructure including an extensive road system and terraced farming to support a large population. However, civil war over succession and disease weakened the empire, allowing the Spanish conquistador Francisco Pizarro to conquer the Incas in 1531 AD, ending Inca rule.
