The Valley of Mexico in the Middle Formative
The cultures of central Mexico tended to lag behind those of southern Mexico in the development of political and religious complexity. The presence of Olmec figurines and ceramics in Early Formative burials in the Valley of Mexico has been noted, but the local communities of that time were of a modest village sort, as were those of the succeeding Middle Formative. On the western shores of the great lake filling the Valley of Mexico, for instance, remains of several simple villages have been uncovered that must have been not unlike small settlements that can be found in the Mexican hinterland today. The people who lived at El Arbolillo and Zacatenco had simply terraced off village refuse to make platforms on which their pole-and-thatch houses were built. Metates and manos are plentiful; pottery is relatively plain—featuring the abundant hard, white-slipped ware of the Middle Formative—and small female figurines are present by the thousands. Subsistence was based upon corn farming and upon hunting. In some Middle Formative sites, however, such as Tlatilco, there is evidence of Olmec influence, as in the previous Early Formative Period. There are also indications that ceremonial pyramid construction began in the latter part of the Middle Formative at Cuicuilco, a site in the southern part of the valley, which was to become a major centre in the succeeding Late Formative Period.