Rhine frontier of the Romanempire, 70AD, showing the location of the Batavi in the Rhine delta region. Roman territory shaded darker.
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Original image by Hans Erren. Uploaded by Jan van der Crabben, published on 26 April 2012 under the following license: Creative Commons: Attribution-ShareAlike. This license lets others remix, tweak, and build upon your work even for commercial reasons, as long as they credit you and license their new creations under the identical terms.