Washington was created through the efforts of statesmen with the power of the soldier.
Polyglot means to know different languages, so he probably meant that multiple races lived in the United States.
a lot is going to change like for example From the Civil War to the end of the century lumbering and flour and grist milling were the leading industries, except that cottonseed crushing supplanted flour and grist milling in second rank, according to the census of 1900. i think this because there was a lot that off things they didn't have before that they have now.