At the same time the long respite from military exactions allowed the pursuits of ease and luxury to fructify within the limits of the provinces. Gaul was no longer drained from year to year by the forced requisitions of men and horses, of arms and stores, which had fed the exhausting campaigns of Germanicus. Her ancient cities decked themselves with splendid edifices, with schools and theatres, aqueducts and temples. The camps on the Rhine and Danube were gradually transformed into commercial stations, and became emporiums of traffic with the north of Europe, where the fur and amber of the Hercynian forests and the Baltic coast were exchanged for wine and oil or gold and silver, those instruments of luxury which nature was supposed, in mercy or in anger, to have denied to the German barbarians. Such a state of affairs allowed the emperor to persist in his favourite plan of leaving the provincial governors for years unchanged at their posts. Each succeeding proconsul was no longer in a fever of haste to aggrandise himself by the plunder or renown of a foray beyond the frontiers. The administration of the provinces became a matter of ordinary routine; it lost its principal charms in the eyes of the senators, who could at last with difficulty be induced to exchange the brilliant pleasures of the capital, with all its mortifications and perils, for the dull honours of a distant government. Nor can I discover in general the justice of accusing Tiberius of neglecting the safety of his remote possessions, which seem, on the contrary, to have flourished securely in the armed peace of his august empire. In Gaul the revolt of Sacrovir and his Belgian confederates was effectually suppressed; the outbreak of the Frisians, though at some cost of blood, seems to have been speedily quelled. Nor have we any distinct confirmation of the assertion of Suetonius, that Tiberius suffered the province to be ravaged with impunity by the Germani, which, if true, can apply only to some transient violation of the frontiers. Nor does the assertion of Tiberius’ indifference seem to be better founded with regard to Mœsia. Tacitus steps frequently aside from his domestic narrative to record the affairs of this region and the exploits of the emperor’s lieutenants; while Appian makes special mention of the conquest of Mœsia under Tiberius, and of the establishment of provincial government in this quarter by his hand.[10] Sabinus, Pandus, and Labeo seem to have held the command there successively during the first half of this principate, and these men at least were not allowed to indulge in indolence, for their exertions and victories are a theme to which the historian repeatedly refers.