Discover the Ebb and Flow of the Centuries in Warren County, Ohio
Newspaper article; Daily Herald (Arlington Heights, IL), August 28, 2005
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Religious Studies, Education, Psychology, History, Literature, Philosophy, Entire Library
...formed about 20,000 years ago by runoff of the melting Wisconsin Glacier. First humans to live in the valley were the Paleoindians (8000-1200 B.C.) and the mound- building Hopewell (300 B.C. to A.D. 600) and Adena (1000 B.C. to A...