[Illustration: Caligula.]
As they could not consider him, there remained only Caligula, unless they wished to go outside the family of Augustus, which, if not impossible, was at least difficult and dangerous. For the provinces, the German barbarians, and especially the soldiers of the legions, were accustomed to look upon this family as the mainstay of the empire. The legions had become specially attached to the memory and to the race of Drusus and Germanicus, who still lived in the minds of the soldiers as witnesses to their former exploits and virtues. During the long watches of the night, as their names were repeated in speech and story, their shades, idealized by death, returned again to revisit the camps on the banks of the Rhine and the Danube. The veneration and affection which the armies had once felt for the Roman nobility were now centered about the family of Augustus. In this difficulty, therefore, the senate chose the lesser evil, and, annulling a part of the testament of Tiberius, elected Caligula, the son of Germanicus, as their emperor.
The death of Tiberius, however, was destined to show the Romans for the first time that although it was hard to find an emperor, it might even be harder to find an empress. During the long reign of Augustus, Livia had discharged the duties of this difficult position with incomparable success. Tiberius had succeeded Augustus, and after his divorce from Julia had never remarried. There had therefore been a long interregnum in the Roman world of feminine society, during which no one had ever stopped to think whether it would be easy or difficult to find a woman who could with dignity take over the position of Livia. The problem was really presented for the first time with the advent of Caligula; for, at twenty-seven, he could not solve it as simply as Tiberius had done. In the first place, it was to be expected that a man of his age would have a wife; secondly, the Lex de maritandis ordinibus made marriage a necessity for him, as for all the senators; furthermore, the head of the state needed to have a woman at his side, if he wished to discharge all his social duties. The celibacy of Tiberius had undoubtedly contributed to the social isolation which had been fatal both to him and to the state.
Therefore in Caligula's time the Roman public became aware that the problem confronting it was a most difficult one. A most exacting public opinion, hesitating between the ideals of two epochs, wished to see united in the empress the best part, both of the ancient and of the modern customs, and was consequently demanding that the second Livia should possess virtually every quality. It was necessary that she should be of noble birth; that is, a descendant of one of those great Roman families which with every year were becoming less numerous, less prolific, less virtuous, and more fiercely divided among themselves by irreconcilable hatreds. This latter was a most serious difficulty; for by marrying into one of these lines, the emperor ran the risk of antagonizing all those other families which were its enemies. The empress, furthermore, must be the model of all the virtues; fruitful, in order to obey the Lex de maritandis ordinibus; religious, chaste, and virtuous, that she might not violate the Lex de adulteriis; simple and modest, in deference to the Lex sumptuaria. She must be able to rule wisely over the vast household of the emperor, full of his slaves and freedmen, and she must aid her husband in the fulfilment of all those social duties—receptions, dinners, entertainments—which, though serious concerns for every Roman nobleman, were even more serious for the emperor. That she should be stupid or ignorant was of course out of the question. In fact, from this time to the downfall of Nero the difficulties of the imperial family and its authority arise not so much from the emperors as from their wives; so that it may truly be said that it was the women who unwittingly dragged down to its ruin the great Julio-Claudian house.
[Illustration (top): A bronze sestertius (slightly enlarged), showing the sisters of Caligula (Agrippina, Drusilla, and Julia Livilla) on one side and Germanicus on the other side.]
[Illustration (bottom): A bronze sestertius with the head of Agrippina the Elder, daughter of Agrippa and Julia, the daughter of Augustus. She was the wife of Germanicus, and their daughter, Agrippina the younger, was the mother of the Emperor Nero.]
But if the difficulty was serious, there never was a man so little fitted and so ill prepared to face it as this young man of twenty-seven who had been exalted to the imperial dignity after the death of Tiberius. Four years before his election as emperor, he had married a certain Julia Claudilla, a lady who doubtless belonged to one of the great Roman families, but about whom we have no definite information. We cannot say, therefore, whether or not at the side of a second Augustus she might have become a new Livia. In any case, it is certain that Caligula was not a second Augustus. He was probably not so frenzied a lunatic as ancient writers have pictured him, but his was certainly an extravagant, unbalanced mind, given to excesses, and unhinged by the delirium of greatness, which his coming to the throne had increased the more because it had been conferred upon him at a time when he was too young and before he had been sufficiently prepared. For many years Caligula had never even hoped to succeed Tiberius; he had continually feared that the fate of his mother and his two brothers was likewise waiting for him. Far from having dreamed that he would be raised to the imperial purple, he had merely desired that he might not have to end his days as an exile on some desert island in the Mediterranean. So much good fortune after the long persecutions of his family profoundly disturbed his mental faculties, which had not originally been well balanced, and it fomented in him that delirium of grandeur which violently directed his desires toward distant Egypt, in the customs of which, rather than in those of Rome, he, in the exaltation of power, sought satisfaction for his imperial vanity. From his earliest youth Caligula had shown a great inclination for the products and the men of that far country, then greatly admired and greatly feared by the Romans. For instance, we know that all his servants were Egyptians, and that Helicon, his most faithful and influential freedman, was an Alexandrian. But shortly after his elevation this admiration for the land of the Ptolemies and the Pharaohs broke forth into a furor of Egyptian exoticism, which impelled him to an attempt to bring his own reign into connection with the policies of his great-grandfather Mark Antony. He sought to introduce into Rome the ideas, the customs, the sumptuousness, and the institutions of the Pharaoh-Ptolemaic monarchy, to make of his palace a court similar to that of Alexandria, and of himself a divine king, adored in flesh and blood, as sovereigns were adored on the banks of the Nile.
Caligula was undoubtedly mad, but his madness would have seemed less chaotic and incomprehensible, and a thread of sense would have been discovered even in his excesses and in the ravings of his unsettled mind, if it had been understood that many of his most famous freaks were moved and inspired by this Egyptian idea and tendency. In the madness of Caligula, as in the story of Antony and the tragedy of Tiberius, there is forever recurring, under a new form, the great struggle between Italy and the East, between Rome and Alexandria, which can never be divorced from the history of the last century of the republic and the first century of the empire. Whoever carefully sifts out the separate actions in the disordered conduct of the third Roman emperor will easily rediscover the thread of this idea and the trace of this latent conflict. For instance, we see the new emperor scarcely elected before he introduced the worship of Isis among the official cults of the Roman state and assigned in the calendar a public festival to Isis. In short, he was favoring those Egyptian cults which Tiberius, with his "old-Roman" sympathies, had fiercely combatted. Furthermore, we see Caligula prohibiting the festival in commemoration of the battle of Actium, which had been celebrated every year for more than half a century. At first sight the idea seems absurd; but it must not be considered a caprice; for with this act Caligula was intending to initiate the historical rehabilitation of Mark Antony, the man who had tried to shift the center of Roman politics from Rome to Alexandria. The emperor meant to make plain to Rome that she was no longer to boast of having humiliated Alexandria with arms, since Alexandria would henceforth be taken as a model in all things.