America's First Railroad

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Across
  1. 4. sudden attack by an enemy group
  2. 5. town or city with harbour for ships
  3. 7. risky or daring journey; new activity
  4. 8. self-propelled vehicle for moving railcars
  5. 9. important, significant or big
  6. 10. the action of interfering
Down
  1. 1. act of transporting someone/something
  2. 2. to win a victory over someone/something in war
  3. 3. extremely important or essential
  4. 6. susceptible to harm