 However, the ceremonial enclosure that constitutes the complex of the archeological site of Monte Albán was reused by the Mixtec during the Postclassic period.By this time, the Zapotec people's political power was divided among various city-states, including Zaachila, Yagul, Lambityeco and Tehuantepec.The Maya appear to have founded "Lakam Ha" about 100 B.C., during the Formative period (2500 B.C.