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visualization.js | ||
An interactive map of how state and territory boundaries in the United States changed over time. The underlying data is from John H. Long, et al., Atlas of Historical County Boundaries, Dr. William M. Scholl Center for American History and Culture, The Newberry Library, Chicago (2010).
Lincoln A. Mullen | lincoln@lincolnmullen.com | http://lincolnmullen.com
MIT License http://lmullen.mit-license.org/