Introduction - The gnostic beginnings of orthodoxy - The Catholicity of Irenaeus - The foundations of Catholic teaching in the third century - Origen and orthodoxy - The Nicene Council and its aftermath - Apollinarius and the Chalcedonian definition - Epilogue
Church history -- Primitive and early church, ca. 30-600
Church -- Catholicity
Theology, Doctrinal -- History -- Early church, ca 30 - 600