Statistics for occurrence #1 of “Prussia” in chapter 1 of Medford Historical Society Papers, Volume 10.:

... that he knew when his object was attained. Note his statement in the Framingham address, when he reviewed his great work. He briefly stated his purpose and its accomplishment in these words, The Prussia n system with its two central powers, a board of education and normal schools, was not known in New England, when I first described it in public in 1835, but on the 19th of April, 1838, Massachusetts,...
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.