Inca Empire By Richie.klosek 1425 Beginning of Inca Empire 1425 Beginning of Inca Empire 1438 Pachacuti Inca Yupanqui defeats the Chancas to control the Cuzco Valley and further expand the Inca empire. 1471 Reign of Inca Tupac Yupanqui who doubles the size of the Inca Empire. 1526 Civil war between the Inca leaders Waskar and Atahualpa. Atahualpa wins. 1533 The Spaniards take over Cuzco and Incan Empire 1535 End of Inca Empire
