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In page Timeline of African-American history:

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1866

  • April 9 – The Civil Rights Act of 1866 is passed by Congress over Johnson's presidential veto. All persons born in the United States are now citizens.[citation needed]
  • The Ku Klux Klan is formed in Pulaski, Tennessee, made up of white Confederate veterans; it becomes a paramilitary insurgent group to enforce white supremacy.[citation needed]
  • May 1–3 – The Memphis Massacre transpires.[citation needed]