The first town on the Roman side of the Rubicon was Ariminum. Caesar advanced to this town. The authorities opened its gates to him--very willing, as it appeared, to receive him as their commander. Caesar'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 re-enforcement 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. [Sidenote: Domitius appointed to supersede Caesar.] In the confusion of the debates and votes in the Senate at Rome before Caesar 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 Caesar 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 Caesar in his command, and had reached the town of Corfinium, which was perhaps one third of the way between Rome and the Rubicon. Caesar advanced upon him here and shut him in. [Sidenote: Caesar's treatment of Domitius.] After a brief siege the city was taken, and Domitius and his army were made prisoners. Every body gave them up for lost, expecting that Caesar would wreak terrible vengeance upon them. Instead of this, he received the troops at once into his own service, and let Domitius go free. [Sidenote: Dismay at Rome.] [Sidenote: Pompey's distress.]