Patterns of change in the Inca empire

The Inca Empire was the largest empire in pre-Columbian America. The civilization emerged in the 13th century and lasted until it was conquered by the Spanish in 1572. The administrative, political, and military center of the empire was located in Cusco in modern-day Peru. From 1438-1533, the Incas used a variety of methods, from conquest to peaceful assimilation, to incorporate a large portion of western South America. Beginning with the rule of Pachacuti-Cusi Yupanqui, the Inca expanded their borders to include large parts of modern Ecuador, Peru, western and south-central Bolivia, northwest Argentina, north and north-central Chile, and southern Colombia. This vast territory was known in Quechua (the language of the Inca Empire) as Tawantin Suyu, or the Four Regions, which met in the capital of Cusco.