- 
  
  A land deal between the United States and France where the U.S. bought about 827,000 square miles of land west of the Mississippi River for $15 million.
 - 
  
  The Santa Fe Trail was a transportation route through central North America that connected Franklin, Missouri with Santa Fe, New Mexico.
 - 
  
  key conflict as Mexican General Santa Anna defeats Texans
 - 
  
  Texan victory led by Sam Houston--Texas Independence
 - 
  
  The route over which settlers traveled to Oregon in the 1840s and 1850s
 - 
  
  the incorporation of the Republic of Texas into the United States of America, which was admitted to the Union as the 28th state
 - 
  
  war between U.S./Mexico; increase of land led to more debates of slavery expanding
 - 
  
  led Mormons to Utah for religious freedom/escaping religious persecution
 - 
  
  Treaty that ended the Mexican-American war/U.S. gains western lands
 - 
  
  Southern part of New Mexico and Arizona bought from Mexico
 - 
  
  promised Indians control of the Central Plains- Indians agreed not to attack migrants as they crossed the Plains