Legend tells that in ancient times, a great float of strange rafts arrived at the beaches of the existing San José cove. Formed by a brilliant cortege of foreign warriors, this float was led by a man of great talent and courage, named Naylamp, who founded a civilization.

The descendants are the builders of the great Chimú civilization, forged in Lambayeque before the Inca Empire. The Chimú grew to acquire a notable state parallel to the Inca. Yet, unlike the Incas, the Chimú moved their capital to more propitious and strategic zones, establishing great urban centers there. They were great farmers, textile experts and, wonderful goldsmiths, with extraordinary works in gold.

The Inca conquest of what today is Lambayeque, lasted almost four decades. Pachacuti, Tupac Inca Yupanqui and Huayna Cápac, successively, ruled during the process.

Francisco Pizarro crossed the region in his way to Cajamarca to conclude the defeat of the Inca empire. He was amazed by the gold exposed in vases and utensils.

During Colonial times, a rivalry started between the people of Lambayeque and Santiago de Miraflores de Saña. The reason of the conflict was the opulence in which the latter lived, even provoking the greed of pirates. A flood in 1720, however, destroyed Saña and marked the end of a flourishing city.

The people of Lambayeque followed Juan Manuel Iturregui as their leader in the struggles for emancipation and independence from Spain. He spread the libertarian ideas and helped get arms for the cause.