The empire of the Inca, at its peak, extended along the Pacific coast and Andean highlands from the northern border of modern Ecuador to the Maule River in central Chile. By that time they had gained control of an Andean population of some 12 million people. Their capital was Cusco (Peru), founded in 12th century.
The Inca left no written records and their history is known mainly from the oral tradition and the written records composed from them after the Spanish conquest in 1532. According to their tradition, the founder of the Inca dynasty was Manco Capac.