The Moundbuilder people built mound complexes, cultivated domesticated plants, constructed pottery and ritually buried their dead. Archaeologists have discovered valuable objects from vast distances left within the mounds as offerings to the recently deceased.
Ohio, Indiana, Illinois, Wisconsin, Minnesota and Michigan host mysterious mound complexes believed to be built by a Native American group between 2,200 and 1,600 years ago. Previous to building these complexes, these Amerindians subsisted through hunting, fishing and agriculture. According to Newberry, the mounds were the result of a new, profound religion that swept through the region, thus acting as an impetus to build ceremonial centers along lakes and rivers. Matriarchal in nature, they lived in small nuclear family groups led by senior family members.