The relationship between Christianity and politics is a historically complex subject and a frequent source of disagreement throughout the history of Christianity, as well as in modern politics between the Christian right and Christian left. There have been a wide variety of ways in which thinkers have conceived of the relationship between Christianity and politics, with many arguing that Christianity directly supports a particular political ideology or philosophy. Along these lines, various thinkers have argued for Christian communism, Christian socialism, Christian nationalism, Christian anarchism, Christian libertarianism, or Christian democracy. Others believe that Christians should have little interest or participation in politics or government. History Antiquity Early Christianity was most prominent in the Roman Empire, where it was illegal to practice Christianity and persecution of Christians took place. The first state to recognize Christianity as its official religion was the Kingdom of Armenia in 301. Christianity gained prominence in Roman politics during the reign of Constantine the Great, who favored Christianity and legalized its practice in the empire in 313. Christians were also appointed to government positions at this time. In 380, Trinitarian Christianity was made the official religion of the Roman Empire by Theodosius I. The first major instance of Christianity wielding power in politics took place in 390. After the Massacre of Thessalonica, the bishop of Milan forbade Emperor Theodosius the Eucharist until he repented, and Theodosius complied. Early Christians were described by Celsus as those who refused military service and would not accept public office, nor assume any responsibility for the governing of cities. Origen confirms this description and adds that Christians do more for the good of the empire by forming an "army of piety" that prays for the well-being of the emperor and the safety of the empire. It has been argued that Christianity made a significant positive contribution to the development of modern democracy. The organizational structure of the Roman church was defined to align with that of the Roman government, and the five major hubs of the Roman Empire also became those of the church as the Pentarchy. Middle Ages Christianity dominated European politics in the Middle Ages. During the fall of the Western Roman Empire, the Pope effectively served as the political leader of the region. The Byzantine Empire continued to be the center of the church in the East. In 800, Charlemagne was crowned by Pope Leo III as the Emperor of