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A Red Scare is the promotion of a widespread fear of a potential rise of communism or anarchism by a society or state. ... The First Red Scare, which occurred immediately after World War I, revolved around a perceived threat from the American labor movement, anarchist revolution, and political radicalism.
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adding poll taxes and literacy tests
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many African Americans couldnt pay the poll taxes and werent able to read very well so they were unable to pass and because of that were unable to vote