 The San Miguel Ixtapan culture flourished from 450 to 1522 CE, possibly the Chontal culture from the Balsas with close cultural and commercial ties with Teotihuacan, Tula, and the Central Highlands as well as other points of Tierra Caliente.The complex cultural overlay present in Mesoamerica throughout centuries, also existed in Tejupilco, where eventually a Chontal Kingdom was formed (Chontal meaning foreigner or not Aztec) probably Matlazinca with Tejupilco as capital and composed, according to Gaspar de Covarrubias by 18 groups

The Aztecs conquered the Tejupilco kingdom.Tejupilco was conquered by the Mexicas or Aztecs around 1475-1476, during the reign of Axayacatl, consequently, at the time of the conquest the Matlazinca and Nahuatl or Mexican was spoken in the region

In spite of the finding of the "model" rock in 1958, formal archaeological excavations only started in 1985, and Museum construction started in 1993.