Black history Crossword puzzle

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Across
  1. 2. Peaceful African American revolutionary
  2. 4. A woman that escaped slavery and helped other slaves escape with her
  3. 7. Using humans as property
  4. 8. One of the greatest boxers of all time
Down
  1. 1. Laws set in the south to diminish black people
  2. 3. Famous for refusing to give up her bus seat
  3. 5. The NBA player with the most championships won
  4. 6. Black nationalist leader