Culhuacan (Classical Nahuatl: Cōlhuàcān [koːlˈwaʔkaːn]) was one of the Nahuatl-speaking pre-Columbian city-states of the Valley of Mexico. According to tradition, Culhuacan was founded by the Toltecs under Mixcoatl and was the first Toltec city.[1] The Nahuatl speakers agreed that Culhuacán was the first city to give its rulers the title of "speaker" (tlatoani).[citation needed] In the sixteenth century following the Spanish conquest of the Aztec Empire, Culhuacan was incorporated into colonial New Spain and called a pueblo, but in local-level documentation in Nahuatl, residents continued to use the designation altepetl for their settlement.[2]