Where were the Aztecs located?
Teotihuacan Teotihuacan , also written Teotihuacán (] ,    ), is an ancient Mesoamerican city located in a sub-valley of the Valley of Mexico, located in the State of Mexico 40 km northeast of modern-day Mexico City, known today as the site of many of the most architecturally significant Mesoamerican pyramids built in the pre-Columbian Americas.
Toltec Empire According to Aztec historiography, the Toltec Empire, Toltec Kingdom or Altepetl Tolteca was a political entity in Mexico. It existed through the classic and post classic periods of Mesoamerican chronology, but gained most of its power in the Post classic. During this time its sphere of influence reached as far away as the Yucatan Peninsula.