A reassessment of the extent of the eastern Aztec empire in the Mesoamerican Gulf lowlands

Ethnohistoric documents have been used to define the eastern limits of the Aztec empire in the Mesoamerican southern Gulf lowlands with contradictory results. Until the research presented here, complementary archaeological evidence for Aztec imperial interactions has largely evaded detection in this region. In this paper, I review the documentary data for Aztec expansion and interactions near its eastern frontier and present the most robust archaeological evidence discovered to date that supports this imperial presence in the southern Gulf lowlands. A new model for imperial-local interaction is also introduced.