The first Christian scholar to engage in researching and writing a complete history of the Christian church, Eusebius of Caesarea, reveals the embarrassing complexity of the development of the Christian canon, despite his concerted attempt to cover this with a pro-orthodox account. Two things must be known:
first, Eusebius was either a liar or hopelessly credulous (Richard also resort to either or technique of arguement, not very clever of him to do this)(see
n. 6), and either way not a very good historian; second, Eusebius rewrote his
History of the Church at least five times (cf. M 202, n. 29), in order to accommodate changing events, including the ever-important Council of Nicea, where Arianism, the view that Christ was created by God and not entirely identical to God (the greatest advocate of this was Eusebius' contemporary Arius, after whom the doctrine was named, but the idea was not entirely original to him), was decisively declared heretical, and for the first time in history this decision had the full backing and enforcement of the Roman Empire. Eusebius was an Arian until that day, and, not desiring to lose his position in the church, he abandoned his Arianism. We may never know what effect this had on his final revision of his history--but any view he may have taken about the canon that was pro-Arian was certainly expunged.
This may reveal once again how doctrine more than objective scholarship affected Christian choices concerning canonical texts.