org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English Flag map of the USA in 1818 (Before the creation of the 49th Parallel)....
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0/PDMCreative Commons Public Domain Mark 1.0falsefalse English 1872 satirical map - L'Europe en Ce Moment - Fantaise Politico-Géographique determination method...
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