This animation by SunIsUp on Tumblr appears to be based on a chronological collection of land cession maps by Sam B. Hillard, of Louisiana State University, that was published in 1972 in the Annals of the Association of American Geographers.

This work is licensed under a Creative Commons Attribution 3.0 Unported License.
( http://creativecommons.org/licenses/by/3.0/ )

  • July 14
  • , 2012
  1. borcsok posted this