Hispanics
Black family income increased dramatically.
Technological innovation was the most significant economic and social development of the early twentieth century. Some of these inventions included the typewriter, telephone, and mechanized office equipment.
Economic growth resulting in a large new middle class
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galbraith
Migration affected twentieth-century European social life by causing a mass exodus from Europe to North America, and, in particular, the United States.
Migration affected twentieth-century European social life by causing a mass exodus from Europe to North America, and, in particular, the United States.
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On the Twentieth Century was created in 1978.
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No, it is mid to late twentieth century
The Hoax of the Twentieth Century was created in 1976.