Statistics for occurrence #1 of “Prussia” in article 1 of The Daily Dispatch: March 6, 1862., [Electronic resource]:

...ent to meet the gigantic demands for an army of a million of men. This was done by artificial nitre beds. In France alone the yield was a thousand tons per annum. It was proportionate in Holland, Prussia , Sweeden, and Germany. The practice of extracting nitre from beds is still kept up in Europe, especially in Prussia and Sweeden, where it (nitre) is received in the payment of taxes at a stipulated...
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.