The Origins of the Celtic Church 1 of 2, The Churches in Scotland and Ireland arose during the fifth and sixth century flowering of monasticism and produced many important Orthodox monastic saints.

http://archive.org/download/OrthodoxChurchHistory/17a_Celtic_WEB.mp3

St. Augustine of Hippo 385-430 AD Educated convert from Manicheeism who became the founder of a distinct Western theology. Philosophical doctrine of Trinity leading to Filioque, Doctrine of original sin and Pelagian controversy leading to Predestinationism and displacement of ascetic theology.

http://archive.org/download/OrthodoxChurchHistory/16-AugustineF_LQ_WEB.mp3

6th Ecumenical Council-681 AD reaffirms two natural energies and two natural wills of Christ taught by Pope Leo and Maximus the Confessor against the Emperor Heraclius’ Church reunion efforts using Monoenergism and Monothelatism. 

http://archive.org/download/OrthodoxChurchHistory/WEB_15-6th_Ec_Council_ed.mp3

5th Ecumenical Council-553 AD and the Emperor Justinian Completion of integration of Chalcedon and Cyril of Alexandria’s theology.

http://archive.org/download/OrthodoxChurchHistory/WEB_14-5th_Ec_Council-Final.mp3

4th Ecumenical Council-450 AD Condemnation of Eutychianism. 2 natures doctrine of Leo’s Tome. Monophysite schism.

http://archive.org/download/OrthodoxChurchHistory/13-4th_Ec_Council.mp3

3rd Ecumenical Council-431 AD Conflict between Nestorius and Cyril of Alexandria over the term “Theotokos” and the question of who was born of Mary.

http://archive.org/download/OrthodoxChurchHistory/WEB_12-3rd_Ec_Council_ed_D_WEB.mp3

2nd Ecumenical Council-Constantinople 381 AD St. Basil the Great and the doctrine of three hypostases in the Trinity.

http://archive.org/download/OrthodoxChurchHistory/11-2nd_Ec_-C_WEB.mp3

1st Ecumenical Council-Nicea 325 AD and the struggle with Arianism, Athanasius, and the controversy over the term “homoousios”.

http://archive.org/download/OrthodoxChurchHistory/10-1st_Ec_Council_J_WEB.mp3

Monasticism in the 4th-5th Centuries surveys monastic literature, types of monasticism, struggle with Gnosticism, conflict between Theophilus and Evagrian’ Origenism, Gregory of Nyssa. 

http://archive.org/download/OrthodoxChurchHistory/9bMonasticism_in_the_fourth_century_WEB.mp3

Donatism 313AD -> was the controversy between rival hierarchies in North Africa based on the question of whether personal sins invalidate sacraments. 

http://archive.org/download/OrthodoxChurchHistory/9donatism_WEB.mp3