Which of the following did Frederick Jackson Turner argue in his “frontier thesis”?  

  Buffalo soldiers were  

  What is the legacy of Reconstruction?  

  Why was the expansion of railroads significant to the growth of the cattle industry?  

  How did residents typically respond when new immigrants moved into the area?  

  Why was hydraulic mining so damaging to the environment?  

  The Great White Fleet carried with it connotations of American  

  What was the “grandfather clause”?  

  Railroads promoted enormous economic development, but also had several downsides. In addition to displacement of Native Americans and exploitation of workers, which of the following was a downside of the railroad boom?  

  How did emancipation impact the South?