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,
New Testament text-type" and thought to have included witnesses such as Codex Koridethi and minuscule 565, can today be described neither as "Caesarean" nor as a text-type as was previously thought. However, the Gospel of Mark in Papyrus 45, Codex Washingtonianus and in Family 13 does indeed reflect a distinct type of text. Increasing standardization of distinct (and once local) text-types eventually gave rise to the Byzantine text-type. Since most manuscripts of the New Testament do not derive from the first several centuries, that is, they were copied after the rise of the Byzantine text-type, this form of text is found the