Napoleon lll became an emperor of France from 1852 to 1870.
I hope this helped :)
The Great Migration was the relocation of more than 6 million African Americans from the rural South to the cities of the North, Midwest and West from about 1916 to 1970.
Federalism has evolved over the course of American history. At different points in time, the balance and boundaries between the national and state government have changed substantially. In the twentieth century, the role of the national government expanded dramatically, and it continues to expand in the twenty-first century.
