Down to the Fall and Division of the Empire. Regarding the successors of Artaxerxes Longimanus on the throne of Persia, Diodorus Siculus gives the following information: “In Asia King Xerxes died after a reign of one year, or, as some record, two months; and his brother Sogdianus succeeded to the throne and ruled for seven months. He was slain by Darius, who reigned nineteen years.” (Diodorus of Sicily, XII, 71, 1) The original name of this Darius (known as Darius II) was Ochus, but he adopted the name Darius upon becoming king. He appears to be the “Darius” referred to at Nehemiah 12:22.

On the other hand, historians are unanimous that the first regnal year of Darius II began in spring of 423 B.C.E. One Babylonian tablet indicates that in his accession year Darius II was already on the throne by the 4th day of the 11th month, that is, February 13, 423 B.C.E. (Babylonian Chronology, 626 B.C.–A.D. 75, by R. Parker and W. H. Dubberstein, 1971, p. 18) However, two tablets show that Artaxerxes continued to rule after the 11th month, the 4th day, of his 41st year. One is dated to the 11th month, the 17th day, of his 41st year. (p. 18) The other one is dated to the 12th month of his 41st year. (Old Testament and Semitic Studies, edited by Harper, Brown, and Moore, 1908, Vol. 1, p. 304, tablet No. 12, designated CBM, 5505) Therefore Artaxerxes was not succeeded in his 41st regnal year but ruled through its entirety. This indicates that Artaxerxes must have ruled more than 41 years and that his first regnal year therefore should not be counted as beginning in 464 B.C.E.

Evidence that Artaxerxes Longimanus ruled beyond his 41st year is found in a business document from Borsippa that is dated to the 50th year of Artaxerxes. (Catalogue of the Babylonian Tablets in the British Museum, Vol. VII: Tablets From Sippar 2, by E. Leichty and A. K. Grayson, 1987, p. 153; tablet designated B. M. 65494) One of the tablets connecting the end of Artaxerxes’ reign and the beginning of the reign of Darius II has the following date: “51st year, accession year, 12th month, day 20, Darius, king of lands.” (The Babylonian Expedition of the University of Pennsylvania, Series A: Cuneiform Texts, Vol. VIII, Part I, by Albert T. Clay, 1908, pp. 34, 83, and Plate 57, Tablet No. 127, designated CBM 12803) Since the first regnal year of Darius II was in 423 B.C.E., it means that the 51st year of Artaxerxes was in 424 B.C.E. and his first regnal year was in 474 B.C.E.