Wikipedia
Acolhuacan
Acolhuacan or Aculhuacan ( Nahuatl: ācōlhuahcān; ) was a pre-Columbian province in the east of the Valley of Mexico, inhabited by the Acolhua. Its capital was Texcoco (Tetzcoco). Other altepetl ( city-states) in Acolhuacan included Coatl Ichan, Ecatepec, Teotihuacan, and Tepetlaoztoc.