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Abstract The fourth millennium b.p. in the Maya lowlands provides an interesting case, with mobile, aceramic peoples documented, while ceramic-using villagers lived in other parts of Mesoamerica. Rather than ask why ceramic containers and village life took so long to reach the Maya lowlands, the question can be inverted to posit that a mixed horticultural-foraging adaptation was so effective that it persisted longer than elsewhere. I propose that the so-called 4.2 ka b.p. event was the ultimate cause of increased sedentism and the first adoption of ceramic containers in a limited number of regions of Mesoamerica. My musings are grounded in the comparisons of data from the Soconusco region of southern Mexico and evidence from northern Belize at Colha and Pulltrouser Swamp, as well as the Freshwater Creek drainage. I assume that proximate behavior must account for local adaptations and different rates of change in each region of Mesoamerica. Therefore, regional adaptation in northern Belize during the Late Archaic period provides the evidence with which to reconstruct local adaptation. Excavations and regional reconnaissance document a distinctive orange soil horizon at Progresso Lagoon associated with patinated chert tools and an absence of ceramics. Stone tool assemblages from the preceramic components of three sites in the region indicate a spatial separation of tool use and resharpening at island versus shore. Starch grains recovered from these stone tools indicate that preceramic peoples in northern Belize harvested maize and several other domesticated plant species. These data are consistent with local paleoenvironmental studies that document an extended period of horticultural activity during the fifth and fourth millennia b.p. prior to the adoption of ceramics. Lithic assemblages and associated dietary information from multiple sites provide glimpses of the data necessary to reconstruct Late Archaic period adaptation from a single locale. Such data will be required to understand the proximate causes for the transition to a more settled, village life. 

In this paper, I discuss what is known of the Late Archaic occupation in northern Belize. The second millennium BC is the “Early Formative” for most of Mesoamerica but the subsistence and residential adaptation of the Maya lowlands residents up until ~1100 BC consisted of mixed foraging-horticulturalists with no ceramic containers or permanent villages. This means that an “Archaic” strategy persisted in the Maya area for almost a thousand years longer than elsewhere in Mesoamerica. I review evidence from the site of San Estevan where first ceramic-using (i.e., Swasey phase) villagers are documented with little evidence of their predecessors. Next, I review evidence of Archaic-period occupation on the west shore of Progresso Lagoon where maize, squash and chili peppers were cultivated by mobile foragers. Finally, I present plans to thoroughly document and date the second and third millennium BC occupation of Progresso Lagoon and explore how the global climatic change impacted the adaptation of forager-horticulturalists.