Diocletian also restructured the Roman government by establishing the Tetrarchy, a system of rule in which four men shared rule over the massive Roman Empire. The empire was effectively divided in two, with an Augustus and a subordinate Caesar in each half.
Of all the factors draining the empire of its ability to survive, four stand out: the changing nature of the external threat to the empire's western borders; the frequent civil wars among claimants to the imperial throne; the migration and settlement of large, armed and culturally hostile barbarian populations within ...
Because it said that the Earth was one planet among many that orbited the sun. The Chruch beleived we were the center of the universe because we were God's perfect creation
