Chapter 21 Crossword Puzzle

4. Made metal into steel for a low cost, this revolutionized metal production specifically between 1877 and 1892
7. An iron alloy
9. The one-hundredth birthday of America celebrated at a world fair.
10. people who donated millions of dollars to colleges,libraries, museums,orchestra,and opera companies.
13. To cross a continent, especially by the use of railroad.
16. Thomas Edison's most well known invention
17. A plant purifying crude oil
19. The fastest way of transportation at the time
20. Groups of workers that negotiate wages and working conditions with company owners

1. A system that divided the U.S. into 4 time zones for, at first, railroads in 1883
2. A guarantee that inventors will get all profits on their inventions for a certain length of time.
3. The pattern of good times and bad times in a nations economy.
5. The aftermath of a bombing that took place at a labor demonstration on May 4th, 1886.
6. A person who organizes and operates a business or businesses, taking on greater than normal financial risks in order to do so.
8. A major invention in 1876
11. Places where workers labor for long hours under poor conditions for not much money.
12. They wanted an end to Chinese immigration and excluded Chinese from their work.
14. A Croatian immigrant who use generators to harness power and create cheap electricity.
15. Largest North American Mountain Range
18. A company given permission by the government to raise money by selling stock.