Answer:
America, was constantly expanding and growing and the settlers always wanted more land so they drove, forced or fought the Native Americans and other groups out. This sparked the 19th century territorial expansion. The United states was expanding rapidly and the new issue of slavery started to grow.
The new lands they acquired were, the Louisiana Purchase. The states they acquired from that were Arkansas, Colorado, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, and Wyoming. There was also the Adams–Onís Treaty which was the selling if Florida.
Explanation:
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