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In page Timeline of African-American history:

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1866

  • July 21 – Southern Homestead Act of 1866 opens 46 million acres of land in Alabama, Arkansas, Florida, Louisiana, and Mississippi; African Americans have priority access until January 1, 1877.[citation needed]
  • September 21 – The U.S. Army regiment of Buffalo Soldiers (African Americans) is formed.[citation needed]
  • One version of the Second Freedmen's Bureau Act is vetoed and fails; another is vetoed and passed via override in July.[citation needed]