Statistics for occurrence #1 of “Massachusetts” in entry federal-union-the-john-fiske of Harper's Encyclopedia of United States History:

...ash;that is to say, ever since the English settlement of Massachusetts. In 1643 a New England confederation was formed between Massachusetts and Connecticut, together with Plymouth, since merged in Massachusetts , and New Haven, since merged in Connecticut. The confederation was formed for defence against the French in Canada, the Dutch on the Hudson River, and the Indians. But owing simply to the inequal...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Massachusetts (Massachusetts, United States) 30,598 2,310 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.