Xaltocan was a pre-Columbian city-state and island in the Valley of Mexico, located in the center of Lake Xaltocan, part of an interconnected shallow lake system which included Lake Texcoco. The site was originally settled by the Otomi people, but following a war in the in the late 14th century where the Otomi were defeated by an alliance of Tepanecs and Mexica the Otomi were driven off the island and relocated to Otumba, Metztitlan and Tlaxcala. The island of Xaltocan was then resettled by Nah… (More on Xaltocan)