Frederic L. Paxson, The Last American Frontier
“ The story of the United States is that of a series of frontiers which the hand of man has reclaimed from nature and the savage, and which courage and foresight have gradually transformed from desert waste to virile commonwealth. It is the story of one long struggle, fought over different lands and by different generations, yet ever repeating the conditions and episodes of the last period in the next. The winning of the first frontier established in America its first white settlements. Later struggles added the frontiers of the Alleghanies and the Ohio, of the Mississippi and the Missouri. ”
