Constantine made the edict of milan and changed the capital.
The un-American activists committee was founded in 1938. It lasted until 1975.
Correct answer:
A.) ethnic diversity, trade, and pacifism
One of the main reasons for remaining neutral in the First World War was because the United States was an important supplier to Great Britain and the other allied powers. What helped the nation's trade. Also, there were many retractors on the participation of the nation in the conflict, because pacifism was marked in the American people.