Dept. of History, US Military Academy published on 02 June 2013
An illustration of the Long Walls fortifications which connected the city of Athens to its port of Piraeus from the 5th century BCE.
Based on Wikipedia content that has been reviewed, edited, and republished.
Original image by Dept. of History, US Military Academy. Uploaded by Mark Cartwright, published on 02 June 2013 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.
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