The Inca ruled an empire in the Andes and Pacific coast of South America, with a capital in Cuzco (Peru) in the 12th century, at which time their population was about 12,000,000. They left no written record of their civilization before the Spanish conquest. The Inca had an oral tradition, however, claiming the founder of the Inca dynasty to be Manco Capac. Mayta Capac was their 4th emperor under whom the Inca began to expand. To manage the new areas, the Incas employed forced resettlement of many of the conquered people and set up local governors responsible for gathering taxes. When the Spanish arrived in Peru in 1532, the leadership of the Inca was in turmoil, and so within three years, the invaders conquered the Inca.