The Byzantine Empire

The Byzantine Empire is one of three superstates in Europe, though most of it's territory lies in Asia and North Africa. It is considered the fourth greatest of the five preeminent world powers, behind the Holy Roman Empire, the Danish Federation, and the Han Dynasty. It's symbol is either a golden double-headed eagle on a purple field, or a white serbian cross on a purple field. Although it began as the eastern half of the Roman Empire, it's legacy as a distinct entity began with Constantine I "the Great" Flavian, who converted to Christianity, and moved the empire's capital to Constantinople.