Constantine was emperor of the Eastern Half of Rome and became emperor of both east and west by 324. He fought civil wars with other rulers Maxentius and Licinius and won all of Rome again after defeating Licinius. He was the first christian emperor of Rome, as the others were pagan. Religiously, he is known for the Edict of Milan which declared tolerance for Christians and for forming the Nicean Council to decide what Christians believed. Constantine created the city Constantinople in Byzantium, and is thought of as the founder of Byzantium for that reason. He had other reforms like introducing gold coins to combat inflation and separation of civil and military government. Constantine was unique as a Roman emperor and represented more of later Rome.