Inventions crossword

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Across
  1. 3. When did the irish come in strong
  2. 6. Most of the people that helped on railroad
  3. 7. helped cotton production
  4. 8. Where this happened
  5. 9. Did Not use slaves
  6. 10. What century
  7. 11. in new york in the water
  8. 12. first name of who made the cotton gin
  9. 14. People that weren't aloud to work
Down
  1. 1. made messages faster
  2. 2. used slaves
  3. 4. helped on the mississippi river
  4. 5. Helped in the fields
  5. 13. revolution that started