| http://www.w3.org/ns/prov#value | - Emphasis is given to discerning systemic differences at particular points and intervals in time (1520, 1520-1685, and 1685-1800) in such things as mortuary variability, the construction and use of mound structures and other community facilities, regional settlement density, and the occurrence and adoption of European trade goods among Caddoan peoples that highlight contrastive changes between Cadd
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