The document summarizes key aspects of the Inca civilization including their location in western South America from 1438 to 1533, their use of conquest and peaceful means to expand their empire, and their transition to living primarily in Peru. It provides details on the Inca's timeline beginning in 2500 BC with farming villages and continuing through the rise and fall of earlier civilizations in the region. The summary describes how the Inca trained fearless warriors to defend their empire through military exercises and chose elite fighting forces. It also notes that the vast majority of the estimated 10 million Inca people worked hard from dawn to dusk for their families, religion and the empire as the Inca had no slavery system and instead expected citizens to contribute labor.