History of the United States (1945–1964)
The history of the United States from 1945 to 1964 was a time of high economic growth and general prosperity. It was also a time of confrontation as the capitalist United States and its allies politically opposed the Soviet Union and other communist states; the Cold War had begun.
Source: Wikipedia — History of the United States (1945–1964) (CC BY-SA 4.0)