Answer:
Yes.
Step-by-step explanation:
The Louisiana Purchase included a huge amount of land in the Great Plains and Rocky Mountains. If it had never happened, the USA may have never spread west to California. The Louisiana Purchase included Oklahoma, Montana, South Dakota, Iowa, Nebraska, Missouri, Arkansas, Kansas, and parts of a few other states. Without the Louisiana Purchase ever happening, cities like Oklahoma City, Denver, St. Louis, Kansas City, or Omaha may have not been such major urban areas. It was a very important milestone in United States history and for the expansion of our nation.