The Northeast is densely populated. Its extensive corridors of urbanization have been called the national "megalopolis." Once a leader in technology and industry, the Northeast has been overtaken in those areas by California's Silicon Valley.
The Midwest is both rural and industrial. It is the home of the family farm and is the "corn belt" and "breadbasket" of the nation. In the Great Lakes area of the upper Midwest, the automobile and steel industries were central to community and economy. As those industries declined, the upper Midwest became known as the rust belt.
The South was shaped by its secession from the Union before the Civil War and is associated with slavery and with subsequent battles over civil rights for African-Americans. In contemporary terms, these are the sunshine states, retirement havens, and new economic frontiers.
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