Culhuacan or Colhuacan was one of the Nahuatl-speaking pre-Columbian city-states of the Valley of Mexico. By tradition, Culhuacan was founded by the Toltecs under Mixcoatl, and that theirs was the first Toltec city (Pohl 1991). The Nahua-speakers agreed that Culhuacan was the first to title their rulers as "speaker" (tlatoani). Culhuacan survived the fall of Tollan and maintained their prestige until the mid-14th century. Notably, in 1299, Culhuacan's tlatoani, Cocoxtli, helped the Tepanecs of… (More on Culhuacan)