United States of America: 1870-1921

Why did Reconstruction fail to change the South after the Civil War?
What were the sources of party identification in the period 1874-96, and how do you differentiate between the Republican and Democratic parties of this period?
Analyse the different strategies advanced by American blacks to secure their advancement in the period between Reconstruction and the 1920s.
Why have historians found it so difficult to define Progressivism?
How did immigrants adapt to life and work in the United States in the period 1880-1921?
In what sense, if any, was the USA a world power by 1914?