Term: Woodland culture (archaeology)
Definition: ca. 2,500 to 850 years ago, or 500 B.C. to 1250 A.D.; it was characterized by the beginnings of modern tribes, clay pottery, agriculture, and ceremonial burial mounds.
[Source: Theler, James L. and Robert F. Boszhardt. Twelve Millennia: Archaeology of the Upper Mississippi River (Iowa City: University of Iowa Press, 2003).]