Statistics for occurrence #1 of “Japan” in chapter 2.9 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: Volume 2.:

... Japan
Albert Kautz, Captain, U. S. N. At 1 o'clock P. M. of the 25th of April, 1862, Farragut's squadron, having complet...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Japan (Japan) 930 2 0 0 0 user votes
Japan (Missouri, United States) 0 0 0 0 0 user votes
Japan (Pennsylvania, United States) 0 0 0 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.