In his chronology, imitated, in some degree, from Thucydides, Procopius begins each spring the years of Justinian and of the Gothic war; and his first aera coincides with the first of April, 535, and not 536, according to the Annals of Baronius, (Pagi, Crit. tom. ii. p. 555, who is followed by Muratori and the editors of Sigonius.) Yet, in some passages, we are at a loss to reconcile the dates of Procopius with himself, and with the Chronicle of Marcellinus.