Cold War: The Cold War was an ideological conflict between the United States (and its allies) and the Soviet Union (and its allies) from 1947 to 1991.
Baby Boom: Baby Boom denotes the significant increase in birth rates that occurred between 1946 and 1964 as soldiers returned from WWII and started families.
Marshall Plan: The Marshall Plan was an American initiative launched after WWII to aid the economic recovery of European countries and prevent the spread of communism.