2 WW
- very distant at the beginning
- after the attack at Pearl Harbour  they joined to the war  this part of the history is hazy, spy organizations, uncertain about some facts

after the 2 WW  became the major power of the world they have power everywhere

2nd part of the century:
The issue that dominated American politics in the 1950s and 1960s was civil rights.
Numerous Presidents attempted to improve the situation of black people (and other minorities) in American society