Historical MapsOld maps Relative sizes of the United States and The European Powers (1920) February 20, 2016 Alex This post may contain affiliate links. As an Amazon Associate, we earn from qualifying purchases. Related Posts:The Most Influential Military Alliances in HistoryHistorical Maps of the United States and North AmericaPredominant ancestry in the U.S.Maps of the United StatesDifferences between the United States and Europe mappedThe Oldest Cities in the U.S. MappedExotic Animal Laws by U.S. State MappedThe 30 Best Map-Based Strategy Board Games