us history

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Across
  1. 3. march of the sea
  2. 6. election of 1876
  3. 8. freedmen bureau
  4. 11. fort Sumter
  5. 12. nullification
  6. 15. Nebraska act
  7. 16. Gettysburg
  8. 18. California gold rush
Down
  1. 1. impeachment
  2. 2. Trent affair
  3. 4. market revolution
  4. 5. manifest destiny
  5. 7. Gettysburg address
  6. 9. rights bill of 1866
  7. 10. cotton gin
  8. 13. underground railroad
  9. 14. Fredericksburg
  10. 17. union blockade