In twenieth century u. s history what p[eriofs of relative of relatoive stablity and prosperity have followed times of warfare or civil disorder?

The time of economic prosperity in the history of United States was the time of 1920s. The time of unrest and civil disorder was 1950s and 1960s.

Explanation:

The time in the history of the United States was the time of 1920s and this decade was  also known as the roaring 1920s because of the activities in this decade. This period was the time of mass production  of consumer goods like radios, increased employment opportunities because of more demand in the market by the people and period of advancement and the prosperity in the country.

On the other hand, in the society 1950s and 1960s was the time period where there was unrest and civil disorder. The reason for this was the unrest created by the African Americans. They were fighting and protesting for their rights and to get their grievances solved. These decades were the time of warfare in the society of the United States of America.