"Toynbee, Arnold (C.E.1961). A Study of History. Vol. 12. Oxford University Press. p. 485. Ever since the beginning of the Babilonish Captivity, the diaspora has been Jewry's citadel and the Artaxerxes in question is Artaxerxes I (imperabat 465-424 B.C.E.) or Artaxerxes II (imperabat 404-359 B.C.E.) So we do not know whether the date of Ezra's mission was 458 B.C.E. or 397 B.C.E., or whether the date of Nehemia's mission was 445 B.C.E. or 384 B.C.E. (see G.F. Moore: Judaism in the First Centuries of the Christian Era, vol. i, p. 5). Nehemiah may have preceded Ezra"