Here are some links to Websites that relate to the material in this chapter. Click around to broaden your understanding of the topics in this section by seeing what’s out there on the Web!

• The Transcontinental Railroad
  This site is from the Museum of the City of San Francisco.
  

• Sketch By Alexander Graham Bell Of His Telephone
  Bell made this sketch for his cousin Frances Symonds of his new invention, the telephone.
  

• Punch Card Tabulating Machine, Late 1880s
  Herman Hollerith (1860-1929) invented a punch card tabulating machine to mechanize the census; one of the first steps toward computerization.
  

• National Refinery Company
  This positive history of the company reflects the industrial changes of late nineteenth century America.
  

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