This image is a derivative work of the following images: File:GreatWallOfHanDynasty.png licensed with Cc-by-sa-3.0-migrated, GFDL, GFDL-user-en-no-disclaimers...
Info Ksyrie made it from the blank map of en:Image:ChinaGeography.png and en:Image:Han_foreign_relations.jpg, an external links [1] and [2] English...
