XXXVII. But, above all things, he was careful to keep the (216) public peace against robbers, burglars, and those who were disaffected to the government. He therefore increased the number of military stations throughout Italy; and formed a camp at Rome for the pretorian cohorts, which, till then, had been quartered in the city. He suppressed with great severity all tumults of the people on their first breaking out; and took every precaution to prevent them. Some persons having been killed in a quarrel which happened in the theatre, he banished the leaders of the parties, and the players about whom the disturbance had arisen; nor could all the entreaties of the people afterwards prevail upon him to recall them [336]. The people of Pollentia having refused to permit the removal of the corpse of a centurion of the first rank from the forum, until they had extorted from his heirs a sum of money for a public exhibition of gladiators, he detached a cohort from the city, and another from the kingdom of Cottius [337]; who concealing the cause of their march, entered the town by different gates, with their arms suddenly displayed, and trumpets sounding; and having seized the greatest part of the people, and the magistrates, they were imprisoned for life. He abolished every where the privileges of all places of refuge. The Cyzicenians having committed an outrage upon some Romans, he deprived them of the liberty they had obtained for their good services in the Mithridatic war. Disturbances from foreign enemies he quelled by his lieutenants, without ever going against them in person; nor would he even employ his lieutenants, but with much reluctance, and when it was absolutely necessary. Princes who were ill-affected towards him, he kept in subjection, more by menaces and remonstrances, than by force of arms. Some whom he induced to come to him by fair words and promises, he never would permit to return home; as Maraboduus the German, Thrascypolis the (217) Thracian, and Archelaus the Cappadocian, whose kingdom he even reduced into the form of a province. XXXVIII. He never set foot outside the gates of Rome, for two years together, from the time he assumed the supreme power; and after that period, went no farther from the city than to some of the neighbouring towns; his farthest excursion being to Antium [338], and that but very seldom, and for a few days; though he often gave out that he would visit the provinces and armies, and made preparations for it almost every year, by taking up carriages, and ordering provisions for his retinue in the municipia and colonies. At last he suffered vows to be put up for his good journey and safe return, insomuch that he was called jocosely by the name of Callipides, who is famous in a Greek proverb, for being in a great hurry to go forward, but without ever advancing a cubit.