Only sixty years had elapsed since Rome had been conquered by Odoacer; and during this period its population, the ecclesiastical and civil authority of its bishop who was the highest dignitary of the Christian world, and the influence of its senate which still continued to be in the eyes of mankind the most honourable political body in existence, enabled it to preserve a species of independent civic constitution. Theodoric had availed himself of this municipal government to smooth away many of the difficulties which presented themselves in the administration of Italy. The Goths, however, in leaving the Romans in possession of their own civil laws and institutions, had not diminished their aversion to a foreign yoke; yet as they possessed no distinct feelings of nationality apart from their connection with the imperial domination and their religious orthodoxy, they never aspired to independence, and were content to turn their eyes towards the emperor of the East as their legitimate sovereign. Belisarius, therefore, entered the Eternal City rather as a friend than as a conqueror; but he had hardly entered it before he perceived that it would be necessary to take every precaution to defend his conquest against the new Gothic king Witiges. He immediately repaired the walls of Rome, strengthened them with a breastwork, collected large stores of provisions, and prepared to sustain a siege. The Gothic war forms an important epoch in the history of the city of Rome; for within the space of sixteen years it changed masters five times, and suffered three severe sieges. Its population was almost destroyed; its public buildings and its walls must have undergone many changes, according to the exigencies of the various measures required for its defence. It has, consequently, been too generally assumed that the existing walls indicate the exact position of the walls of Aurelian. This period is also memorable for the ruin of many monuments of ancient art, which the generals of Justinian destroyed without compunction.[14] [Sidenote: [537-540 A.D.]]