The map of three kingdoms of Korea based on the construction of Imna Japan-fu theory.
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the Japanese territory image below is made by Maximilian Dörrbecker (Chumwa), Image:Japan_admin_levels.svg, Wikimedia commons. The file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>