vocab for us history

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Across
  1. 3. went from poor to rich
  2. 6. made his money by building rail road tracks and water transportation
  3. 8. founder of stranded oil controlled 90% of the oil refinery businesses
  4. 9. frick cuts wages by 20%
  5. 11. the belief that he survival of the fittest should be applied
  6. 12. invested in thomas edison´s inventions
Down
  1. 1. people from another county entering a better county to have a better life for them self's of their families
  2. 2. A time of superficial giter of wealth
  3. 4. two brilliant people that fought over a.c being to dangerous or not
  4. 5. people coming together to form a strike to perhaps get something in return like better wages
  5. 7. where the population is increasing in a city/area
  6. 10. a island where immigrants come by boat and get checked to see if their qualified to enter the us/immigration station