Council of Rome 382 A.D-Council of Rome (whereby Pope Damasus started the ball rolling for the defining of a universal canon for all city-churches). Listed the New Testament books in their present number and order.
Council of Hippo 393 A.D. the Council of Hippo, which began “arguing it out.” Canon proposed by Bishop Athanasius.
Council of Carthage 397 A.D. The Council of Carthage, which refined the canon for the Western Church, sending it back to Pope Innocent for ratification. In the East, the canonical process was hampered by a number of schisms (esp. within the Church of Antioch).
Council of Nicea II: 787-The Ecumenical Council of Nicaea II, which adopted the canon of Carthage. At this point, both the Latin West and the Greek / Byzantine East had the same canon. However, … The non-Greek, Monophysite and Nestorian Churches of the East (the Copts, the Ethiopians, the Syrians, the Armenians, the Syro-Malankars, the Chaldeans, and the Malabars) were still left out. But these Churches came together in agreement, in 1442A.D., in Florence.
Council of Florrence 1442: AD : At the Council of Florence, the entire Church recognized the 27 books. This council confirmed the Roman Catholic Canon of the Bible which Pope Damasus I had published a thousand years earlier. So, by 1439, all orthodox branches of the Church were legally bound to the same canon. This is 100 years before the Reformation