There is no such thing as the Christian canon, singular, and the differences are not trivial. The Jewish scriptures circulated in a wider Greek collection and a narrower Hebrew one; the early church used the Greek. Jerome argued for the shorter Hebrew list and lost the argument in his own lifetime. Athanasius' Easter letter of 367 gives the earliest list of exactly the twenty-seven New Testament books we now have, and regional councils at Hippo in 393 and Carthage in 397 ratified a Western canon. The Reformers went back to the Hebrew list and moved the extra books to an appendix, from which Bible societies eventually dropped them altogether, which is why a Protestant Bible has 66 books and a Catholic one 73. Trent responded by defining the Catholic list dogmatically in 1546. The Orthodox churches include more still and have never legislated a precise number. The Ethiopian Tewahedo canon of 81 is the widest in Christianity and preserves 1 Enoch and Jubilees complete in Ge'ez when they survive nowhere else — which is how the Dead Sea Scrolls discoveries were checked against a living tradition.