changes from within, began to give way, and to dilapidate from without. And this reign dates itself in the series by those ever-memorable secular or jubilee games, which celebrated the completion of the thousandth year from the foundation of Rome. [Footnote: This Arab emperor reigned about five years; and the jubilee celebration occurred in his second year. Another circumstance gives importance to the Arabian, that, according to one tradition, he was the first Christian emperor. If so, it is singular that one of the bitterest persecutors of Christianity should have been his immediate successor--Decius.] Resuming our sketch of the Imperial history, we may remark the natural embarrassment which must have possessed the senate, when two candidates for the purple were equally earnest in appealing to them, and their deliberate choice, as the best foundation for a valid election. Scarcely had the ground been cleared for Æmilianus, by the murder of Gallus and his son, when Valerian, a Roman senator, of such eminent merit, and confessedly so much the foremost noble in all the qualities essential to the very delicate and comprehensive functions of a Censor, [Footnote: It has proved a most difficult problem, in the hands of all speculators upon the imperial history, to fathom the purposes, or throw any light upon the purposes, of the Emperor Decius, in attempting the revival of the ancient but necessarily obsolete office of a public censorship. Either it was an act of pure verbal pedantry, or a mere titular decoration of honor, (as if a modern prince should create a person Arch-Grand-Elector, with no objects assigned to his electing faculty,) or else, if it really meant to revive the old duties of the censorship, and to assign the very same field for the exercise of those duties, it must be viewed as the very grossest practical anachronism that has ever been committed. We mean by an anachronism, in common usage, that sort of blunder when a man ascribes to one age the habits, customs, or generally the characteristics of another. This, however, may be a mere lapse of memory, as to a matter of fact, and implying nothing at all discreditable to the understanding, but only that a man has shifted the boundaries of chronology a little this way or that; as if, for example, a writer should speak of printed books as existing at the day of Agincourt, or of artillery as existing in the first Crusade, here would be an error, but a venial one. A far worse kind of anachronism, though rarely noticed as such, is where a writer ascribes sentiments and modes of thought incapable of co-existing with the sort or the degree of civilization then attained, or otherwise incompatible with the structure of society in the age or the country assigned. For instance, in Southey's Don Roderick there is a cast of sentiment in the Gothic king's remorse and contrition of heart, which has struck many readers as utterly unsuitable to the social and moral development of that age,