-373 354-430 approximately329-379 approximately330-379or380 approximately335-approximately394 athanasius augustine biography christianityandculture christianliterature christianpoetry christiansaints civilization classical congresses correspondence correspondencebasil correspondencegregory councilofconstantinople(1st:381:constantinople) early earlychurch earlyworksto1800 fathersofthechurch greek gregory history historyandcriticism historyofdoctrines macrina naturaltheology poetry theology translationsintoenglish turkey