It was in the Augustan Age that Roman architecture virtually commenced and its developments are associated with Imperial rule. Of the period immediately preceding the new era Mommsen writes as follows: “There was in the world as Cæsar found it much of the noble heritage of past centuries and an infinite abundance of pomp and glory, but little spirit, still less taste and least of all true delight in life. It was indeed, an old world; and even the richly gifted patriotism of Cæsar could not make it young again.” Rome, the heart of the Empire, was corrupt. The ruling class coveted pensions from the public exchequer to be spent on luxurious living; while the mass of the populace clamoured for “panem et circenses”--feeding and shows at the public charge. To satisfy their hunger both classes would have taxed the provinces. But among the chief duties of the emperors were the development of the resources of the provinces and the protection of the frontiers; and, while the best of the emperors performed these functions from high motives, even the worst found it politic to court the growing power of the provinces. Thus, the main vitality of the empire was in its extremities, and, although the emperors beautified Rome, they also encouraged public works of utility and beauty in the provinces. To this end a law was passed, permitting municipalities to receive bequests and gifts from private individuals. In the liberality with which wealthy provincials enriched their communities, Dr. Ferrero, the latest historian of Rome, has seen a parallel to the munificent public gifts of American millionaires. Accordingly, this great era of Roman building left its impress not only upon Italy, but in Greece and northward as far as the Danube, in Asia Minor, Syria, Palestine, Egypt, along the whole Northern coast of Africa, and in Spain, France, and Great Britain as far as the Firth of Forth. It was distinguished not only by the magnitude of the operations but also by their character. Whereas in Egypt the architectural works had consisted of temples and tombs; and in Hellas these had been supplemented by theatres and odeia; while Assyria and Persia left their memorials in palaces, those of the Roman Empire embraced all of these types and many more. The Romans applied architecture to the practical needs of everyday life, and reinforced it with engineering. They overlaid the Empire with fine trunk-roads, many of which survive to-day; constructed sewers; spanned rivers with bridges; conveyed water in countless miles of aqueducts; erected fora and market-places, triumphal arches, temples, palaces, villas, baths, basilicas, theatres, and hippodromes; providing alike for the necessities of life, the needs of government, and the amusements and luxuries of living.