![](http://www.alamy.com/thumbs/6/D70DFFA4-5243-4CBF-8449-D57F12F466B0/PBA2TK.jpg)
1187 Philadelphia Harbor showing the islands now being removed by the United States. Major C. W. Raymond, Corps of Engineers, Army, in charge, 1891 LCCN2007661539
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Photo credit: © History and Art Collection / Alamy / Afripics
License: Licensed
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