The Andean people are an indigenous group of people who inhabit the Andes mountain range in South America. The most well-known of these people are the INCA, who were the largest and most powerful pre-Columbian civilization in the Americas. The INCA were a highly organized society with a complex social structure and a strong economy. The INCA Empire was centered in what is now Peru and lasted from the 13th century until the Spanish conquest in the 16th century. The Incas were known for their advanced engineering and architecture, including the construction of roads, bridges, and terraces. The term 'Incas' is derived from the Quechua word for 'KING' or 'LORD'.