New Testament the Anchor Bible Dictionary), may be the earliest known New Testament canon attributed to mainstream Christianity. It is similar, but not identical, to the modern New Testament canon. The oldest clear endorsement of Matthew, Mark, Luke, and John being the only legitimate gospels was written "circa" 180 AD. A four gospel canon (the "Tetramorph") was asserted by Irenaeus, who refers to it directly in his polemic "Against the Heresies", "It is not possible that the gospels can be either more or fewer in number than they are. For, since there are four zones of the world in which we live,
Historical reliability of the Gospels of Durham and university professor, has stated that "Certainly not! There is absolutely no certainty in the New Testament about anything of importance." Critical scholars have developed a number of criteria to evaluate the probability, or historical authenticity, of an attested event or saying represented in the gospels. These criteria are applied to the gospels in order to help scholars in reconstructions of the Historical Jesus. The criterion of dissimilarity argues that if a saying or action is dissimilar to, or contrary to, the views of Judaism in the context of Jesus or the views of the early church, then