Teotihuacán
What we do know about Teotihuacán chronology is that beginning 150-100 B.C. Teotihuacan grew rapidly due to regional dominance of the Cuicuilio and the relocation of much of the population. Many settlements moved from the hinterlands to the valley floor.  Teotihuacán’s urbanism grew exponentially during the subsequent Patalachique Phase. This is also when the Moon Pyramid was constructed, which was one of the earliest public structures in the city. The following chronology is the development and decline of Teotihuacán that is divided into six phases. This is based on ceramic distinctions defined through test excavations throughout the city.