Statistics for occurrence #1 of “Prussia” in chapter 1 of George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 5, 13th edition.:

...against the king of England, he might welcome the experiment of the widelyextending American commonwealth, but not with confidence in its happy course. If the number of active minds in cultivated Prussia was not yet large enough to give to forming opinion a popular aspect, in Russia, the immense empire which was extending itself along the Baltic and the Euxine, and had even crossed the Pacific to set...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Prussia (Iowa, United States) 2 0 0 0 0 user votes
Prussia (Ohio, United States) 2 0 0 0 0 user votes
Prussia (New Mexico, 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.