Because they needed jobs, so they moved to industial cities up north to work in facturies etc.
Answer:
a Roman Empire
e Ancient Greece
Explanation:
The Eastern Roman Empire, popularly called the Byzantine Empire, kept Greek and Roman culture alive.
Answer:
it effected the geographical knowledge of the time, also the mapping of the east coast of Australia which paved the way for British settlement
Explanation:
It would be primarily commerce that takes place "within states" that is not a power of Congress, since the main power of Congress in this regard is to regulate interstate commerce.