Development of the New Testament canon day called that of the sun" (Sunday) alongside the "writings of the prophets." A defined set of four gospels (the "Tetramorph") was asserted by Irenaeus, "c". 180, who refers to it directly. By the early 3rd century, Origen may have been using the same twenty-seven books as in the present New Testament canon, though there were still disputes over the acceptance of the Letter to the Hebrews, James, II Peter, II John, III John, Jude and Revelation, known as the Antilegomena. Likewise, the Muratorian fragment is evidence that, perhaps as early as 200, there existed a set of Christian writings
New Testament apocrypha The rarity of information about the childhood of Jesus in the canonical gospels led to a hunger of early Christians for more detail about the early life of Jesus. This was supplied by a number of 2nd century and later texts, known as infancy gospels, none of which were accepted into the biblical canon, but the very number of their surviving manuscripts attests to their continued popularity. Most of these were based on the earliest infancy gospels, namely the Infancy Gospel of James (also called the "Protoevangelium of James") and Infancy Gospel of Thomas, and on their later combination into