One specific historical effect of the high birth rate on United States society from 1946–1964

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Explanation:

via internet: Following World War II, the United States experienced a greatly elevated birth rate, adding on average 4.24 million new babies to the population every year between 1946 and 1964. This generation of "baby boomers" was the result of a strong postwar economy, in which Americans felt confident they would be able to support a larger number of children.

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.