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,
Synoptic Gospels as the Hebrew logia mentioned by Papias, the Jewish–Christian gospels, and the Gospel of Marcion. Ancient sources virtually unanimously ascribe the synoptic gospels to the apostle Matthew, to Peter's interpreter Mark, and to Paul's companion Luke - hence their respective canonical names. A remark by Augustine at the beginning of the fifth century presents the gospels as composed in their canonical order (Matthew, Mark, Luke, John), with each evangelist thoughtfully building upon and supplementing the work of his predecessors—the Augustinian hypothesis (Matthew–Mark). This view (when any model of dependence was considered at all) seldom came into question until the late