As the Olmec culture developed in the early pre-classic period, we observe the phenomenon of the Olmec Heads and their Mysterious origins. Through ideological management and coercion mechanisms, the dominant ruler appears and alludes to forms of government exercised by individuals. Massive sculptures and large-scale architecture represent the first representations of political power.
The socio-political complex that developed thus encouraged the development of similar forms in other areas of Mesoamerica, resulting in the first stratified societies consisting of actual states, as seen in Teotihuacan in the Mexican highlands, Monte Albán in Oaxaca, and the Maya city states during the classical period. A corollary of this process was the rise of some post-classical societies that reached supra-state levels, such as the Mexica, who settled in the Mexican highlands and established a true pan-Mesoamerican empire.
Following this brief introduction, it is time to examine each ancient Mexican society considered the most significant in Mesoamerica's political development.