From what I read a long time ago, the Latin Catholic Canon was influenced by considerations of authorship (some books did not have a solid tradition on who the authors were), ecclesiastical usage (some books did not have as universal a recognition as other books) and content (some books were considered merely repetitious histories).
The Coptic Orthodox Church has generally and historically had the same books as the Latins (I believe due to the influence of that other great African Church in Carthage), though many likewise assert origins from St. Athanasius’ Festal Epistle.
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