Statistics for occurrence #1 of “Charleston harbor” in chapter 37 of Admiral David D. Porter, The Naval History of the Civil War.:

...or abroad, and his opinions, which did not in 1863 run in accord with those of the Navy Department, were adopted by his friends and acquaintances in every quarter. DuPont had said that the forts in Charleston harbor could not be taken by the force with which he had attacked them, and his opinion was accepted as that of an expert who had tried the matter to satisfy the Navy Department, and had failed, and who con...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Charleston Harbor (South Carolina, United States) 1,700 50 36 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.