Reevaluating the evidence for middle woodland maize from the holding site

Research output: Contribution to journalArticle

Abstract

Maize fragments recovered from the Middle Woodland Holding site (11MS118) in the American Bottom have for several decades been recognized as the oldest directly dated maize east of the Mississippi River. A reevaluation of maize samples from this site indicates that finding was in error. Carbon isotope assessment (δ13C ratios) run on the original samples dated in 1994 indicated that they were not maize. Six additional samples originally identified as maize were submitted to the Illinois State Geological Survey for carbon ratio assessment and direct accelerated mass spectrometry dating. Three of the fragments, including one from the same feature dated previously, returned non-maize δ13C ratios. The other three samples were correctly identified as maize, but all returned post-A.D. 900 dates. These results invalidate the original report of Middle Woodland maize at Holding and support our ongoing reevaluations of maize histories in the American Bottom and western Illinois, which show that it was not an important cultivated crop plant in this part of the Midwest until about A.D. 900.

Original languageEnglish (US)
Pages (from-to)140-150
Number of pages11
JournalAmerican Antiquity
Volume82
Issue number1
DOIs
StatePublished - Jan 1 2017

ASJC Scopus subject areas

  • History
  • Arts and Humanities (miscellaneous)
  • Archaeology
  • Museology

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