Part 5 of the documents on the Arian controversy includes documents from the years 362-380. This phase was characterized by the process of theological differentiation that led, on the one side, to the creation and formation of neo-Nicene, and on the other, to the foundation of a separate anti-homousian church. Part 5 concludes with the start of the reign of Emperor Theodosius and the edict conctos populos.