Chapter 21 Crossword Puzzle

2. Thomas Edison's most well known invention
9. The pattern of good times and bad times in a nations economy.
11. Largest North American Mountain Range
13. A system that divided the U.S. into 4 time zones for, at first, railroads in 1883
14. A company given permission by the government to raise money by selling stock.
15. A Croatian immigrant who use generators to harness power and create cheap electricity.
16. The one-hundredth birthday of America celebrated at a world fair.
17. Groups of workers that negotiate wages and working conditions with company owners
19. A plant purifying crude oil
20. Places where workers labor for long hours under poor conditions for not much money.

1. They wanted an end to Chinese immigration and excluded Chinese from their work.
3. The aftermath of a bombing that took place at a labor demonstration on May 4th, 1886.
4. To cross a continent, especially by the use of railroad.
5. A guarantee that inventors will get all profits on their inventions for a certain length of time.
6. A major invention in 1876
7. people who donated millions of dollars to colleges,libraries, museums,orchestra,and opera companies.
8. Made metal into steel for a low cost, this revolutionized metal production specifically between 1877 and 1892
10. The fastest way of transportation at the time
12. A person who organizes and operates a business or businesses, taking on greater than normal financial risks in order to do so.
18. An iron alloy