In the late 16th Century, most of the indigenous languages in Colima had vanished as the local Indians lost their traditional languages and learned Spanish. However, with the influx of Otomí, Tarascan and Mexica settlers, indigenous languages from other regions were introduced to the residents of the area. The Vascones Report of 1580 referenced a “Mexicana Corrupta” dialect that was spoken along the lower Rio Zacatula (Balsas), which could have been a vulgar form of Mexicano acquired by the natives from Mexicas brought in by the Spaniards.