Santiago de Cali, simply referred to as Cali, is a city in western Colombia and the capital of the Valle del Cauca Department. With a population of 2.5 million, Cali is the third largest city in the country. It has one of the fastest growing economies and infrastructure in the country because of its geographical location. The city was founded on 25 July 1536 by the Spanish conquistador Sebastian de Belalcazar. Cali is the shortened form of the official name of the city Santiago de Cali. The first part of the full name honours Saint James the apostle (Santiago in Spanish) whose feast day is celebrated on 25 July. The origin of the word "Cali" comes from the local native Indian tribe the "Calima" or "Calimas" descendants of the "Chibcha" tribe. Others believe that the word "Cali" has Quechua origin, and it was brought by the Yanaconas Indians that came from Quito serving Sebastián de Belalcazar. This theory is related to the fact that near Quito there is an indigenous town named Calacali. Before the arrival of the Spaniards, the current region of Cali was inhabited by many indigenous tribes, mostly speakers of Cariban languages. In the region between the Cauca River and the Western Cordillera, the Gorrones were established between the present day Roldanillo and Cali. The biggest town of the Morrones was sited on the River Pescador near present-day towns of Zarzal and Bugalagrande. Although cannibals, the Morrones traded with the Quimbayas who inhabited the north of the Valle del Cauca.