Statistics for occurrence #1 of “Maine” in chapter 1.32 of Southern Historical Society Papers, Volume 17.:

... restriction, and it was also presented to Congress in January following. Upon the final vote the restriction was lost, and Missouri was admitted into the Union with slavery on February 28th, 1821. Maine was received as a free State on the next day. This was according to an agreement, and all the territory north and west of the line of 36° 30′, which was the south line of the State of Misso...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Maine (Maine, United States) 3,878 4 0 0 0 user votes
Maine (France) 4 0 0 0 0 user votes
Maine (France) 2 0 0 0 0 user votes
Maine (New York, United States) 2 0 0 0 0 user votes
Maine (Iowa, United States) 0 0 0 0 0 user votes
Maine (Irish Republic) 0 0 0 0 0 user votes
Maine (Maine, United States) 0 0 0 0 0 user votes
Maine (Minnesota, United States) 0 0 0 0 0 user votes
Maine (North Carolina, 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.