Because the United States acquired the land from France as part of the Louisiana Purchase in 1803.
Answer:
Search for new land and resources
Explanation:
the first Americans were nomadic, meaning they often moved from place to place, and never stayed in a permanent location. Because they were hunters and gatherers, when there were no more resources in the location they were staying, they would move and travel elsewhere. Ultimately, this led them to America, a continent that was not yet discovered or explored.
Answer:
increased number of workers
