For a detailed discussion of the date of the destruction of the library, see Ellens, Alexandria, pp. 6–12, 50–51; and the superbly objective and thorough treatment of the process of the library’s demise by Mostafa El-Abbadi, Life and Fate of the Ancient Library of Alexandria (Paris: UNESCO/UNDP, 1990), pp. 145–179. See also Gibbon, Decline and Fall, vol. 1, pp. 57–58, and vol. 2, chap. 28 (on the destruction of the library); and Parsons, Alexandrian Library, pp. 411–412.