Week 1 Lecture on Early Church History - Professor Seo Sung-sookIntroduction: What is Church History?The purpose and methodology of church history, understanding revelation and providence, and a reformed understanding of history. Week 2 Lecture on Early Church History - Professor Seo Sung-sookThe Church After the Apostolic AgeApostolic succession, the Didache, and characteristics of early Christian communities. Week 3 Lecture on Early Church History - Professor Seo Sung-sookClash with the Roman Empire: The Age of PersecutionThe history of persecution under emperors such as Nero, Domitian, Decius, and Diocletian. Week 4 Lecture on Early Church History - Professor Seo Sung-sookThe Faith and Legacy of the MartyrsThe confessions of faith by martyrs like Polycarp, Justin, and Perpetua. Week 5 Lecture on Early Church History - Professor Seo Sung-sookDoctrinal Debates and the ApologistsThe struggle against heresies by apologists such as Justin Martyr, Tertullian, Origen, and Irenaeus. Week 6 Lecture on Early Church History - Professor Seo Sung-sookThe Formation of the Canon and the Authority of ScriptureThe process of canonizing the New Testament, the Marcion controversy, and the Muratorian Canon. Week 7 Lecture on Early Church History - Professor Seo Sung-sookThe Beginning of the Conciliar EraThe Council of Nicaea (325) and the Athanasius-Arius controversy. Week 8 Lecture on Early Church History - Professor Seo Sung-sookConstantine and the Legalization of ChristianityThe Edict of Milan (313), the institutionalization of Christianity, and its inherent dangers. Week 9 Lecture on Early Church History - Professor Seo Sung-sookThe Life and Theology of AugustineDoctrines of original sin, grace, and ecclesiology; his works Confessions and City of God. Week 10 Lecture on Early Church History - Professor Seo Sung-sookThe Emergence and Influence of MonasticismAntony, Pachomius, the Benedictine order, and asceticism. Week 11 Lecture on Early Church History - Professor Seo Sung-sookDebates on the Trinity and ChristologyThe Council of Chalcedon (451) and the process of establishing orthodox Christology. Week 12 Lecture on Early Church History - Professor Seo Sung-sookCultural and Theological Differences Between the Eastern and Western ChurchesGreek vs. Latin thought, and structural differences between the East and West. Week 13 Lecture on Early Church History - Professor Seo Sung-sookThe Legacy of the Early Church and its Modern ApplicationReflecting on the spirit of martyrdom, the centrality of the Word, and the essence of the church.