The arrival of the U.S. troops in Europe. (I just learned about this in school)
The Oregon Trail was part of the idea of Manifest Dynasty because, Manifest Dynasty was the idea that America should expand into the Western Territory. The Oregon Trail is people who are traveling from the East to the West, so it demonstrates Manifest Dynasty very strongly.
Answer:
Ima say c on this
Explanation:
Supreme power is held by people and their chosen reps
Two Nuclear Bombs, one on Hiroshima, the other on Nagasaki