Answer:
They are different in the way that the Byzantine Empire broke off from the originally Roman Empire where Christianity was rooted. They broke off because of their ideas on Christianity while in Africa, Christianity was brought to them.
Explanation:
Canberra is the only one of those cities that is not coastal.
Answer:
Karl Marx proposed communism as a solution to the problems created by the Industrial Revolution in his work The Communist Manifesto, along with Friedrich Engels.