Statistics for occurrence #1 of “Arkansas” in entry united-states-of-america-indian-territory of Harper's Encyclopedia of United States History:

...he United States definitely set apart for the Indians, June 30, 1834, lat. 33° 35′ to 37° N., long. 94° 20′ to 103° W. Oklahoma and Kansas are on the north, Missouri and Arkansas to the east, and Texas on the south and west. Area, 31,400 square miles. Population, 1890, about 75,000; 1900, 392,060. Its former area has been reduced by the loss of the Cherokee strip, adde...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Arkansas (Arkansas, United States) 8,997 310 1 0 0 user votes
Arkansas (United States) 698 66 0 0 0 user votes
Arkansas (Kentucky, United States) 2 0 0 0 0 user votes
Arkansas (West Virginia, United States) 2 2 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.