Arkansas vs Land of Opportunity

Arkansas

name
  • A river in the United States, rising in the Rocky Mountains of Colorado, and flowing generally southeast over 1,400 miles through Kansas, Oklahoma and Arkansas, where it joins the Mississippi in Desha County. 

  • A state in the South Central region of the United States. Capital and largest city: Little Rock. 

Land of Opportunity

name
  • An unofficial nickname for the state of Arkansas in the United States of America. 

How often have the words Arkansas and Land of Opportunity occurred in a corpus of books? (source: Google Ngram Viewer )