原文 (英语)

INTRODUCTION The romantic and thrilling story of the southward and westward migration of successive waves of transplanted European peoples throughout the entire course of the eighteenth century is the history of the growth and evolution of American democracy. Upon the American continent was wrought out, through almost superhuman daring, incredible hardship, and surpassing endurance, the formation of a new society. The European rudely confronted with the pitiless conditions of the wil