industrial revolution

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Across
  1. 2. Inventor of the telephone
  2. 4. Essential for longer working hours
  3. 7. Where was the foundation of the German Empire placed
  4. 12. invention of 1785 (2words)
  5. 13. Where was the Sulzer-Factory placed
  6. 14. What did iron replaced
  7. 16. Is the Centennial Mirror positive or negative
  8. 17. Migration to the ...
  9. 18. Changed to trains
Down
  1. 1. New ideal
  2. 3. Rich businessman
  3. 5. Who caused the economy to grow
  4. 6. Product of oil and tar
  5. 8. Symbol of iron and steel (2 words)
  6. 9. Enabled a worker to use several spindles at the same time (2 words)
  7. 10. First railway carrying passengers was opened between ... and Darlington
  8. 11. Cheap workers
  9. 15. New economic leaders worldwide: Germany and ...
  10. 16. English word for "Roheisen" (2 words)