East-West Orientation of Historical Empires and Modern States

Jared Diamond (1997) hypothesized that if environment is important in limiting the spread of cultures, cultural units would also tend to extend more broadly along lines of latitude than along lines of longitude. We test this hypothesis by studying the range shapes of (a) historical empires and (b) m...

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Bibliographic Details
Main Authors: Peter Turchin, Jonathan M. Adams, Thomas D. Hall
Format: Article
Language:English
Published: University Library System, University of Pittsburgh 2015-08-01
Series:Journal of World-Systems Research
Online Access:http://jwsr.pitt.edu/ojs/index.php/jwsr/article/view/369