Edited by J.P. Migne in the mid-1880's, the Patrologia Latina includes 1,000 years worth of Latin writings from Tertullian to Pope Innocent III totaling . Vols. 1- 73 include writings from Tertullian to Gregory of Tours, Vols. 74 - 217 from Pope Gregory I to Innocent III.
Edited by J.P. Migne in the mid-1880s, the Patrologia Gracae contains he works of the Greek Fathers from the first century (pseudo-Clement) to 1478 (Calliste), and also all major and minor Greek authors and the most important texts of Christian Antiquity and the Middle Ages. Includes Greek writings of Irenæus of Lyons, Origen, Clement of Alexandria, Eusebius of Caesarea, Gregory of Nyssa, St. John Chrysostom, Cyril of Alexandria, Maximus Confessor, John Damascene, Georgius Pachymeres, Symeon Metaphrastes and others.