Cæsar stood for some time upon the banks of the stream, musing upon the greatness of the undertaking in which simply passing across it would involve him. His officers stood by his side. "We can retreat now" said he, "but once across that river, we must go on." He paused for some time, conscious of the vast importance of the decision, though he thought only, doubtless, of its consequences to himself. Taking the step which was now before him would necessarily end either in his realizing the loftiest aspirations of his ambition, or in his utter and irreparable ruin.
There were vast public interests, too, at stake, of which, however, he probably thought but little. It proved, in the end, that the history of the whole Roman world, for several centuries, was depending upon the manner in which the question now in Cæsar's mind should turn.
There was a little bridge across the Rubicon at the point where Cæsar was surveying it. While he was standing there, the story is, a peasant or shepherd came from the neighboring fields with a shepherd's pipe—a simple musical instrument made of a reed and used much by the rustic musicians of those days. The soldiers and some of the officers gathered around him to hear him play. Among the rest came some of Cæsar's trumpeters, with their trumpets in their hands. The shepherd took one of these martial instruments from the hands of its possessor, laying aside his own, and began to sound a charge—which is a signal for a rapid advance—and to march at the same time over the bridge. "An omen! a prodigy!" said Cæsar. "Let us march where we are called by such a divine intimation. The die is cast."
So saying, he pressed forward over the bridge, while the officers, breaking up the encampment, put the columns in motion to follow him.
It was shown abundantly, on many occasions in the course of Cæsar's life, that he had no faith in omens. There are equally numerous instances to show that he was always ready to avail himself of the popular belief in them, to awaken his soldiers' ardor or to allay their fears. Whether, therefore, in respect to this story of the shepherd trumpeter it was an incident that really and accidently occurred, or whether Cæsar planned and arranged it himself, with reference to its effect, or whether, which is, perhaps, after all, the most probable supposition, the tale was only an embellishment invented out of something or nothing by the story-tellers of those days to give additional dramatic interest to the narrative of the crossing of the Rubicon, it must be left for each reader to decide.
As soon as the bridge was crossed, Cæsar called an assembly of his troops, and, with signs of great excitement and agitation, made an address to them on the magnitude of the crisis through which they were passing. He showed them how entirely he was in their power; he urged them, by the most eloquent appeals, to stand by him, faithful and true, promising them the most ample rewards when he should have attained the object at which he aimed. The soldiers responded to this appeal with promises of the most unwavering fidelity.
The first town on the Roman side of the Rubicon was Ariminum. Cæsar advanced to this town. The authorities opened its gates to him—very willing, as it appeared, to receive him as their commander. Cæsar's force was yet quite small, as he had been accompanied by only a single legion in crossing the river. He had, however, sent orders for the other legions, which had been left in Gaul, to join him without any delay, though any reinforcement of his troops seemed hardly necessary, as he found no indications of opposition to his progress. He gave his soldiers the strictest injunctions to do no injury to any property, public or private, as they advanced, and not to assume, in any respect, a hostile attitude toward the people of the country. The inhabitants, therefore, welcomed him wherever he came, and all the cities and towns followed the example of Ariminum, surrendering, in fact, faster than he could take possession of them.
In the confusion of the debates and votes in the Senate at Rome before Cæsar crossed the Rubicon, one decree had been passed deposing him from his command of the army and appointing a successor. The name of the general thus appointed was Domitius. The only real opposition which Cæsar encountered in his progress toward Rome was from him. Domitius had crossed the Apennines at the head of an army on his way northward to supersede Cæsar in his command, and had reached the town of Corfinium, which was perhaps one third of the way between Rome and the Rubicon. Cæsar advanced upon him here and shut him in.
After a brief siege the city was taken, and Domitius and his army were made prisoners. Everybody gave them up for lost, expecting that Cæsar would wreak terrible vengeance upon them. Instead of this, he received the troops at once into his own service and let Domitius go free.
In the meantime, the tidings of Cæsar's having passed the Rubicon, and of the triumphant success which he was meeting with at the commencement of his march toward Rome, reached the capital, and added greatly to the prevailing consternation. The reports of the magnitude of his force and of the rapidity of his progress were greatly exaggerated. The party of Pompey and the Senate had done everything to spread among the people the terror of Cæsar's name in order to arouse them to efforts for opposing his designs; and now, when he had broken through the barriers which had been intended to restrain him and was advancing toward the city in an unchecked and triumphant career, they were overwhelmed with dismay. Pompey began to be terrified at the danger which was impending. The Senate held meetings without the city—councils of war, as it were, in which they looked to Pompey in vain for protection from the danger which he had brought upon them. He had said that he could raise an army sufficient to cope with Cæsar at any time by stamping with his foot. They told him they thought now that it was high time for him to stamp.