This chapter focuses on the emergence of the United States as a ‘superpower’ in 1945. It begins with a discussion of how America rose from being a group of British colonies to a continental empire containing human slavery during the period 1776–1865. It then examines how the reunification of the country after the Civil War, and the industrial revolution which followed, turned America into the world’s leading economic power by the early twentieth century. It also considers Woodrow Wilson’s empire of ideology and how the United States got involved in World War I, how the American economic system sank into depression between 1929 and 1933, and US role in the Cold War between 1933 and 1945.
