Work in Progress
Please pardon our progress while we refine the look and functionality of our new ALEX site! You can still access the old ALEX site at If you would like to share feedback or have a question for the ALEX Team, you can use the contact form here, or email us directly at



  • social influences
  • economic influences
  • expansion
  • transcontinental railroads
  • Manifest Destiny
  • geographic features
  • acquired
  • Westward Expansion
  • ranchers
  • Mormons
  • Hispanics
  • frontier
  • emergence


Students know:
  • Social and economic influences on United States' expansion prior to World War I.
  • How the development of transcontinental railroads contributed to the expansion of the United States and related to the concept of Manifest Destiny.
  • Details related to how the United States acquired Alaska and Hawaii.
  • Major groups and individuals involved with the Westward Expansion, including farmers, ranchers, Jewish merchants, Mormons, and Hispanics.
  • The impact of closing the frontier on American Indians' way of life.
  • The Spanish-American War led to the emergence of the United States as a world power.


Students are able to:
  • Locate states and capitals on a physical and political map.
  • Describe and explain social and economic influences on the United States expansion.
  • Explain and evaluate the concept of Manifest Destiny.
  • Describe and explain how the development of the transcontinental railroads helped the United States achieve its Manifest Destiny.
  • Identify and analyze the impact of Manifest Destiny on a variety of cultural groups.
  • Explain and analyze how the Spanish-American War led to the United States becoming a world power.


Students understand that:
  • There were social, political, and economic influences on United States prior to World War I.