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1870 Social Darwinism
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1920 Lost generation
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1920 tin pan alley
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1920 Harlem Renaissance
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1921 teapot dome scandal
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1924 American Indian citizenship act of 1924
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1924 immigration act of 1924
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1929 deportation and repatriation of people of
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1930 dust bowl
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1933 civilian conservation corp
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1933 Tennessee valley Authority
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1933 federals Deposit Insurance corporation
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1934 securities & exchange commission
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1935 social security administration
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1935 works progress administration (WPA)
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1945 Henry Ford