New Testament 200s, Origen may have been using the same twenty-seven books as in the Catholic New Testament canon, though there were still disputes over the canonicity of the Letter to the Hebrews, Epistle of James, II Peter, II John and III John and the Book of Revelation, known as the Antilegomena. Likewise, the Muratorian fragment is evidence that, perhaps as early as 200, there existed a set of Christian writings somewhat similar to the twenty-seven book NT canon, which included four gospels and argued against objections to them. Thus, while there was a good measure of debate in the Early Church
Development of the New Testament canon as now known): In the mid-2nd century, Justin Martyr (whose writings span the period from c. 145 to 163) mentions the "memoirs of the apostles", which Christians called "gospels" and which were regarded as on par with the Old Testament. Scholars are divided on whether there is any evidence that Justin included the Gospel of John among the "memoirs of the apostles", or whether, on the contrary, he based his doctrine of the Logos on it. Justin quotes the letters of Paul, 1 Peter, and Acts in his writings. In Justin's works, distinct references are found to Romans, 1 Corinthians,