More than two thousand prophetic books, pretending to be Sibylline oracles, were found by Augustus in the possession of private persons; and these were condemned to be burned, and in future no private person was allowed to keep any writings of the kind. But in spite of every attempt to authenticate the books that were publicly accepted, the new collection was never regarded with the same veneration as the original volumes of Tarquin which it replaced. A certain suspicion of spuriousness continued to cling to it, and greatly diminished its authority. It was seldom consulted. The Roman emperors after Tiberius--who still further sifted it--utterly neglected the received collection; and not till shortly before the fatal battle of the Milvian Bridge, which overthrew paganism, was it again brought out, by Maxentius, for the purpose of indicating the fate of the enterprise. Julian the Apostate, in his attempt to galvanise the dead pagan religion into the semblance of life, sought to revive an interest in the Sibylline oracles, which were so closely identified with the political and religious fortunes of Rome. But his effort was vain: they fell into greater oblivion than before; and at last they were publicly burned by Stilicho, the father-in-law of the Emperor Honorius--called the Defender of Italy--whose own execution as a traitor at Ravenna shortly afterwards was considered by the pagan zealots as the just vengeance of the gods on his dreadful sacrilege. Unlike the Jewish and Indian faiths, the Greek and Roman religions had no authoritative writings, and were not embodied in a system of elaborate dogmas. The Sibylline oracles may therefore be said to have formed their sacred scriptures, and to have served the purpose of a common religious creed in securing national unity. The original books of the Cumaean Sibyl were written in Greek, which was the language of the whole of the south of Italy at that time. The oracles were inscribed upon palm leaves; to which circumstance Virgil alludes in his description of the sayings of the Cumaean Sibyl being written upon the leaves of the forest. They were in the form of acrostic verses; the letters of the first verse of each oracle containing in regular sequence the initial letters of all the subsequent verses. They were full of enigmas and mysterious analogies, founded upon the numerical value of the initial letters of certain names. It is supposed that they contained not so much predictions of future events, as directions regarding the means by which the wrath of the gods, as revealed by prodigies and calamities, might be appeased. They seemed to have been consulted in the same way as Eastern nations consult the Koran and Hafiz. There was no attempt made to find a passage suitable to the occasion, but one of the palm leaves after being shuffled was selected at random. To this custom of drawing fateful leaves from the Sibylline books--called in consequence _sortes sibyllinae_--there is frequent