Statistics for occurrence #1 of “Kentucky” in entry acquisition-of-territory of Harper's Encyclopedia of United States History:

... of Minnesota, all of Wisconsin, Michigan, Illinois, Indiana, Ohio (see Northwest Territory), Tennessee, and a great part of Alabama and Mississippi. Vermont was admitted as a separate State in 1791; Kentucky , then a part of Virginia, in 1792; and Maine, till that time claimed by Massachusetts, in 1820.
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† Kentucky (Kentucky, United States) 10,087 1,016 1 0 0 user votes
Kentucky (Arkansas, United States) 0 0 0 0 0 user votes
Kentucky (Illinois, United States) 0 0 0 0 0 user votes
Kentucky (Michigan, 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.