Summarize built roads, tunnels, bridges, massive forts Machu Picchu… great engineers built roads in high altitudes of over 15,000 feet; constructed sacrificial platforms in mountainous areas witha n altitude of 22,000 The Incas The Inca Empire 1438-1532 the largest native state to have existed in the Western hemisphere started out in Peru and then expanded to Ecuador (north), to Chile (south) population: 6 million people language: Quechua land: ” Land of the Four Quarters”: over 2,50000 Civilization * had 20 different kinds of corns and over 240 varieties of potaotes * fair governors * the most advanced ancient people in medicine and surgery Sentences ► 2 Possessing great knowledge of math and engineering, they built roads, tunnels, bridges, massive forts and even constructed Machu Picchu: an ancient city in Peru whose ruins attract thousand of tourists every year. ► 20 The Incas believed in heaven and hell and worshiped a sun god called Apu Inti, holding many festivals in his honor and devoting temples to him. ► 21 The Incas had a calendar that revolved around the cycles of the sun and the moon, and used divination to predict the outcome of battles and plan social events.