Oh Turtullian and Justin Martyr - you're going way back smile
  emoticon I tend to skip the "threads of influence" and go to the
  collective bodies. Prior to the Ecumenical Councils, it was a
  bit of a hodge-podge of competition. But when you get to the
  point where there was some true organization taking place and
  issues were raised that were strong enough that the church body
  as a whole had to get together to resolve them, that's when you
  start seeing progress (or backwardness, depending on your take
  of them, but I see them as progressive). Ecumenical councils
  would be the equivalent of the United Nations meeting or having
  important scientific/philosophical conferences (like the one
  that was just held the other week to discuss the future of
  Science and, in particular Physics - between Philosophers and
  Theoretical Physicists over a three day period. [they were
  bringing up issues of whether or not the newer theories in
  Theoretical Physics are properly a Science and should, instead,
  be considered Metaphysics perhaps, or whether the very
  definition of Science needs to change in order to incorporate
  ideas that have no practical hope of testing] I'd have to look
  back at Turtullian and Justin Martyr again but it's been a while
  since I looked at the individuals and their contributions. I
  made a rare exception for Gemistus Pletho because I've been
  looking for him for a VERY long time now. I knew there was a
  very important "link" between Byzantium and Latin West and the
  start of Humanism, but there was always a missing piece in the
  tales I would hear. I could never find that missing piece, but I
  tripped over him the other week and it was rather exciting to
  me.