The government center of the Roman Empire moved to the east
Explanation:
For years prior the creation fo the New Rome, or Constantinople, Rome was only a ceremonial capital, it wasn´t conviniently placed, the geography surrounding it made it difficult to reach and it was too far away from the rest of the empire, because of that Constantine founded the New Rome, better positioned and with much more acces to resources and trade routes, with this he moved the government center of the Roman Empire to the east.
The WW1 draft caused a shortage of labor in the northern factories and African Americans migrated to take advantage of new job opportunities, better education and modern facilities of the cities
The American colonies were the British colonies that were established during the 17th and early 18th centuries in what is now a part of the eastern United States.
The main reason why Roosevelt wanted to increase the number of judges on the Supreme Court is to create a liberal majority. His thinking was that this majority would give him more support for his New Deal programs.