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Edward Ullman
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Edward Ullman

American geographer
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Learn about this topic in these articles:

  • central-place theory

    Edward Ullman introduced central-place theory to American scholars in 1941. Since then geographers have sought to test its validity. Iowa and Wisconsin have been two areas of empirical research that have come closest to meeting Christaller’s theoretical assumptions.

    Read More

    Edward Ullman introduced central-place theory to American scholars in 1941. Since then geographers have sought to test its validity. Iowa and Wisconsin have been two areas of empirical research that have come closest to meeting Christaller’s theoretical assumptions.

    Read More