But if this be so, then there falls away a great part of the argument for placing the building of the walls of Jerusalem and the labours of Ezra and Nehemiah under Artaxerxes II. (404—358) instead of Artaxerxes I. It is true that some who accept the building of the Temple under Darius I. nevertheless put Ezra and Nehemiah under Artaxerxes II. The weakness of their case, however, has been clearly exposed by Kuenen,[537] who proves that Nehemiah’s mission to Jerusalem must have fallen in the twentieth year of Artaxerxes I., or 445.[538] “On this fact there can be no further difference of opinion.”[539] These two dates then are fixed: the beginning of the Temple in 520 by Zerubbabel and Jeshua, and the arrival of Nehemiah at Jerusalem in 445. Other points are more difficult to establish, and in particular there rests a great obscurity on the date of the two visits of Ezra to Jerusalem. According to the Book of Ezra,[540] he went there first in the seventh year of Artaxerxes I., or 458 B.C., thirteen years before the arrival of Nehemiah. He found many Jews married to heathen wives, laid it to heart, and called a general assembly of the people to drive the latter out of the community. Then we hear no more of him: neither in the negotiations with Artaxerxes about the building of the walls, nor upon the arrival of Nehemiah, nor in Nehemiah’s treatment of the mixed marriages. He is absent from everything, till suddenly he appears again at the dedication of the walls by Nehemiah and at the reading of the Law.[541] This “eclipse of Ezra,” as Kuenen well calls it, taken with the mixed character of all the records left of him, has moved some to deny to him and his reforms and his promulgation of the Law any historical reality whatever;[542] while others, with a more sober and rational criticism, have sought to solve the difficulties by another arrangement of the events than that usually accepted. Van Hoonacker makes Ezra’s _first_ appearance in Jerusalem to be at the dedication of the walls and promulgation of the Law in 445, and refers his arrival described in Ezra vii. and his attempts to abolish the mixed marriages to a second visit to Jerusalem in the twentieth year, not of Artaxerxes I., but of Artaxerxes II., or 398 B.C. Kuenen has exposed the extreme unlikelihood, if not impossibility, of so late a date for Ezra, and in this Kosters holds with him.[543] But Kosters agrees with Van Hoonacker in placing Ezra’s activity subsequent to Nehemiah’s and to the dedication of the walls.