Before the arrival of Christopher Columbus, numerous so-called pre-Columbian civilizations lived in the Americas. These included the indigenous civilizations of Mesoamerica (Olmecs, Toltecs, Zapotecs, Mixtecs, Aztecs and Mayas) and South America (Incas, Moches, Chibchas and Cañaris). The oldest of these three civilizations is the Maya, whose heyday was between 250 and 900 AD. The Aztecs regrouped around the Mexico basin in the 13th century, where they founded the capital of their empire, Tenochtitlan. Finally, the Inca civilization developed between the 12th and 15th centuries in the Cuzco basin in present-day Peru, and then spread along the Pacific Ocean and the Andes mountain range.