The Early Years of Christianity: The Apostolic Era by E. De Pressense

It is our aim to present as full a picture as possible of this period, commencing with the apostolic age, which is so little understood, either from religious indifference or because of the unintelligent veneration which surrounds it with a legendary glory, behind which its types lose all distinctness and originality. St. Peter, St. Paul, and St. John appear too often like those fabulous heroes placed by tradition on the threshold of the historic age, after whose era history, properly so called, begins. We feel the necessity of reconquering, as part of the domain of history, this primitive age of the Church. It will thus regain color and life.