“In this table, the first column contains the years elapsed between the succeeding events: thus, from the creation, 1656 years to the deluge; from the deluge, 292 years to the birth of Abraham, etc.; and their amount, 3952 years, gives the basis of the system, or the years elapsed from the creation to the vulgar Christian era. The second column gives the dates of these events before the Christian era. “David began to reign B.C. 1062; from which subducting 60 years for the amount of his whole reign, 40 years, and 20 years, the half of Solomon’s, we get B.C. 1002, for the date of the expedition of Heber and Heremon to Ireland. “This same number has been noticed by two earlier chronologers, Marcus Anchoreta, A.D. 647; and Nennius, A.D. 858; who both date the arrival of the Scoti in Ireland, ‘1002 years after the passage of the Red Sea by the Israelites, in which the Egyptians were drowned’ (O’Connor, _Proleg._ ii. pp. 15-45). The identity of the number 1002 proves the mistake in the reference to the exode of the Israelites, instead of to the Christian era, which depresses the arrival of the Scoti five centuries too low. For Coemhain reckons the exode 502 years after the birth of Abraham, or B.C. 1502; from which subtracting 1002 years, the arrival of the Scoti would be reduced to B.C. 500; or, following Usher’s date of the deluge, B.C. 1491. O’Connor reduces it still lower, to B.C. 489 (_Proleg._ ii. p. 45). Upon the superior authority of Coemhain, therefore, as a chronologer, we are warranted to rectify this important error of Nennius and Marcus Anchoreta, which even Dr. O’Connor has failed to correct; not adverting to the foregoing inference from Coemhain. But he has happily furnished himself the materials for proving the error. “He states, that one hundred and eighteen kings of the Scoti reigned, till the arrival of St. Patrick, B.C. 489 + A.D. 435 = 921 years in all, which, divided by 118, would give too short an average of reigns, only 7-9/11 years a-piece; whereas the true interval, B.C. 1002 + A.D. 432 = 1434 years, would give the average of reigns above twelve years a-piece; which he justly represents as the standard, from Patrick to Malachy II., viz. forty-eight reigns in 590 years (_Proleg._ ii. p. 45).”[492]