Caesar treated Bibulus also with so much neglect, and assumed so entirely the whole control of the consular power, to the utter exclusion of his colleague, that Bibulus at last, completely discouraged and chagrined, abandoned all pretension to official authority, retired to his house, and shut himself up in perfect seclusion, leaving Caesar to his own way. It was customary among the Romans, in their historical and narrative writings, to designate the successive years, not by a numerical date as with us, but by the names of the consuls who held office in them. Thus, in the time of Caesar's consulship, the phrase would have been, "In the year of Caesar and Bibulus, consuls," according to the ordinary usage; but the wags of the city, in order to make sport of the assumptions of Caesar and the insignificance of Bibulus, used to say, "In the year of Julius and Caesar, consuls," rejecting the name of Bibulus altogether, and taking the two names of Caesar to make out the necessary duality. CHAPTER IV. THE CONQUEST OF GAUL. [Sidenote: Caesar aspires to be a soldier.] [Sidenote: His success and celebrity.] In attaining to the consulship, Caesar had reached the highest point of elevation which it was possible to reach as a mere citizen of Rome. His ambition was, however, of course, not satisfied. The only way to acquire higher distinction and to rise to higher power was to enter upon a career of foreign conquest. Caesar therefore aspired now to be a soldier. He accordingly obtained the command of an army, and entered upon a course of military campaigns in the heart of Europe, which he continued for eight years. These eight years constitute one of the most important and strongly-marked periods of his life. He was triumphantly successful in his military career, and he made, accordingly, a vast accession to his celebrity and power, in his own day, by the results of his campaigns. He also wrote, himself, an account of his adventures during this period, in which the events are recorded in so lucid and in so eloquent a manner, that the narrations have continued to be read by every successive generation of scholars down to the present day, and they have had a great influence in extending and perpetuating his fame. [Sidenote: Scenes of Caesar's exploits.] [Sidenote: Cisalpine and Transalpine Gaul.]