An additional six chapters appear interspersed in Esther in the Septuagint, the Greek translation of the Bible. This was noted by Jerome in compiling the Latin Vulgate. Additionally, the Greek text contains many small changes in the meaning of the main text. Jerome recognized the former as additions not present in the Hebrew Text and placed them at the end of his Latin translation. This placement and numbering system is used in Catholic Bible translations based primarily on the Vulgate, such as the Douay–Rheims Bible and the Knox Bible. In contrast, the 1979 revision of the Vulgate, the Nova Vulgata, incorporates the additions to Esther directly into the narrative itself, as do most modern Catholic English translations based on the original Hebrew and Greek (e.g., Revised Standard Version Catholic Edition, New American Bible, New Revised Standard Version Catholic Edition). The numbering system for the additions differs with each translation. The Nova Vulgata accounts for the additional verses by numbering them as extensions of the verses immediately following or preceding them (e.g., Esther 11:2–12 in the old Vulgate becomes Esther 1:1a–1k in the Nova Vulgata), while the NAB and its successor, the NABRE, assign letters of the alphabet as chapter headings for the additions (e.g., Esther 11:2–12:6 in the Vulgate becomes Esther A:1–17). The RSVCE and the NRSVCE place the additional material into the narrative, but retain the chapter and verse numbering of the old Vulgate.