But it is frequently contended that, if the Evangelists were eyewitnesses of the leading events which they recorded, they committed them to writing so long afterwards that they had forgotten them, or had confused them with various traditions that had in the meantime grown up. There may be some little truth in this contention, but not enough to destroy the credibility of the witnesses as to events such as the Crucifixion and Resurrection of Jesus. These are not matters to be easily forgotten or confused with other things. The date of the composition and publication of the different Gospels is not known. But Professor Holtzmann, of Heidelberg (a man who cannot be said to be favorable to Christianity, since he was for several years the leader of the freethinkers in the Grand Duchy of Baden), after many years of careful study of the subject, declared that the Synoptic Gospels, the first three, were committed to writing between the years 60 and 80 of our era.[18] This was only from thirty to fifty years after the death of Jesus. Could men of average memory and intelligence who had been almost daily preaching the life and deeds of Jesus during these thirty or fifty years have forgotten them? The testimony of Principal Drummond, of Oxford, is very pertinent at this point. He says: "If we suppose that the Synoptic Gospels were written from forty to sixty years after the time of Christ, still they were based on earlier material, and even after forty years the memory of characteristic sayings may be perfectly clear.... I have not a particularly good memory, but I can recall many sayings that were uttered forty, or even fifty, years ago, and in some cases can vividly recollect the scene."[19] If the Evangelists were eyewitnesses, which the records seem clearly to indicate, they possessed one of the strongest tests of credibility. (3) In the third place, as to their _number_ and the _consistency_ of their testimony. The credibility of a witness is greatly strengthened if his testimony is corroborated by other witnesses who testify to substantially the same thing. The greater the number of supporting witnesses, fraud and collusion being barred, the greater the credibility of the witness corroborated. But corroboration implies the presence in evidence of due and reasonable consistency between the testimony of the witness testifying and that of those corroborating. A radical discrepancy on a material point not only fails to strengthen, but tends to destroy the credibility of one or both the witnesses. Now, the fierce fire of skeptical criticism during all the ages has been centered upon the so-called discrepancies of the Gospel narratives. It is asserted by many critics that these inconsistencies are so numerous and so palpable, that the Gospel records are worthless, even as secular histories. The authors of these writings, according to the skeptics, mutually destroy each other. [Illustration: ST. MARK AND ST. PAUL (DÜRER)]