In 1152, the Aztecs, on their way from Tula-Xicocotitlan to Tequixquiac and the Valley of Mexico, decided to settle for a short time at a place called Tepetongo.
En 1152, os aztecas no camiño até o Val de México, procedentes de Tula Xicocotitlan deciden establecerse en Tequixquiac por un curto período de tempo nun lugar chamado Tepetongo.