Statistics for occurrence #1 of “Minnesota” in chapter 15 of Edward L. Pierce, Memoir and letters of Charles Sumner: volume 3:

...marks his public career, and paying the penalty in his removal from his place at the head of the committee on territories and his rejection by the pro-slavery party as a candidate for the Presidency; Minnesota and Oregon had been added to the sisterhood of States, forever destroying the balance between freedom and slavery in the Senate; the memorable debate in Illinois between Douglas and Lincoln had taken...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Minnesota (Minnesota, United States) 1,710 4 0 0 0 user votes
Minnesota (California, United States) 0 0 0 0 0 user votes
Minnesota (Georgia, United States) 0 0 0 0 0 user votes
Minnesota (Minnesota, 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.