 In 1460 the Purépecha State reached the Pacific Coast at Zacatula, advanced into the Toluca Valley, and also, on the northern rim, reached into the present-day state of Guanajuato.In the 15th century, the Purépecha state was at war with the Aztecs.Many Nahua peoples who had lived side by side with Purépecha-speakers were relocated outside of the Tarascan frontiers, and Otomi-speakers fleeing the Aztec expansion resettled on the border between the two polities.