Statistics for occurrence #1 of “Chicago” in alphabetic letter N, entry group 1, entry navigation-acts of Harper's Encyclopedia of United States History:

... Chicago
The first navigation act that affected the American colonies was an ordinance of the British Parliament in 1646, by which a...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Chicago (Illinois, United States) 3,613 669 281 45 0 user votes
Chicago (Wisconsin, 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.