CH104: A Tale of Two Cities

How Roman Catholicism developed in Rome and Eastern Orthodoxy in Constantinople. During the period of AD 350 to 500, the early Christian church faced significant theological disputes regarding the nature of the Trinity and the person of Jesus Christ. These debates were addressed through a series of ecumenical councils, such as Nicaea and Chalcedon, which established foundational creeds to combat various heresies. Simultaneously, the Roman Empire began to collapse under the pressure of barbarian invasions, leading church leaders like Leo the Great to assume civil and political responsibilities. Prominent figures like Ambrose of Milan, Augustine of Hippo, and John Chrysostom shaped Christian thought on grace, holiness, and the relationship between the church and the state. Meanwhile, the rise of monasticism and missionary efforts led by individuals such as Patrick and Benedict helped spread the faith to distant lands. These sources ultimately illustrate how the church transitioned into a dominant social and spiritual power amidst the political chaos of the late ancient world.