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  • America isolationism 1920
    • Fordney mc cumber tariff
      • immigration quota act
        • immigration law 1917 immigrants had to prove they spoke english
        • national origins act 1924 max immigrants 154,000 (2%)
        • emergency quota act 1921 immigrants 357,000
      • free trade ended 1922 tariff started
    • treaty of Versailles and league of nations.
      • USA voted not to join league of nations didn't want to interfere in European affairs.


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