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Resumo

This paper (1) presents four new AMS dates taken directly on prehistoric maize found in New England; (2) collects in one place and in a common format the 16 currently available dates directly on maize from the region; (3) shows, by comparing dates on charcoal or shell associated with 10 of these maize samples, that charcoal and shell are not reliable proxies for dating maize; and (4) draws several archaeological inferences from the dataset. First, a cluster of dates between about cal A.D. 1250 and 1450 that are temporally concentrated but spatially widespread suggests a relatively sudden increase in the archaeological visibility of maize in New England at this time. The increase in visibility roughly coincides with an increase in maize consumption in the midcontinent, although further studies are needed to clarify the timing of the latter. Second and even more striking is the simultaneous increase in the archaeological visibility of beans as well as maize in New England during the same period. Finally, preliminary evidence suggests that these increases may be related to the use of soils fertilized by alluvial limestone or old shell midden material.

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