Greco-Roman culture had a clear "curriculum" which it taught with great certainty. Dr. John Rao describes here the way in which Christianity came to understand its own need for a training in the new Christian Truth and pathway to God. This catechesis was developed by the men we call the Fathers, whose work is studied by the field called Patrology. Taken from: Early Christianity and Late Antiquity - 1993 VonHildebrand Institute