Nationalism and Westward Expansion Choice board

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Across
  1. 2. What treaty established the northern border between the U.S. and Canada that still exists today?
  2. 5. Who were the first easterners to explore the Rocky Mountains?
  3. 8. What treaty ended the Mexican-American War?
  4. 10. What Territory did the United States gain in 1845?
Down
  1. 1. What did the Spanish army try taking from the city of Gonzales, later starting the Texas Revolution?
  2. 3. One of the first U.S. settlements in the Oregon Territory.
  3. 4. What Territory did the United States gain in 1848?
  4. 6. What Territory did the United States get in 1867?
  5. 7. What country did the United States buy Alaska from?
  6. 9. Another word for taking control of.