Deuterocanonical books
Armenian Apostolic Church uses a version of the Bible based on the Greek translation (Septuagint) of the Hebrew Old Testament, which was produced in Egypt in the court of King Ptolemy II Philadelphus (283-246 BC), and includes Deuterocanonical books that are not a part of the present Hebrew and Protestant canons. There is plenty of evidence indicating that the Septuagint was the Old Testament version used throughout the early Christian Church and was revised in the course of the first and second centuries.