Massachusetts Institute of Technology
Some would argue the Soviet Union, while others say the US. It depends how you look at the question. There are certain things that prove it was the fault of one while some prove it was the fault of another.
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.