There is no great name among the Roman historians for about a century and a half after Polybius. Then comes Sallust, the historian of the Jugurthine War and the Catiline conspiracy; and Julius Cæsar, who has left us that remarkable record of his own exploits. Contemporary with Cæsar were Diodorus and Livy, the former of whom lived till about 7 B.C. and the latter till 17 A.D. Livy’s account of his own time, as has already been mentioned, has most unfortunately perished. The chief record of these times that has been preserved, is the work of Appian, an Alexandrian Greek who lived in the time of Trajan, Hadrian, and Antoninus Pius; that is to say, in the early part of the second century A.D. His work is the sole authority--overlooking certain epitomes and fragments--for some periods of the civil wars. It was written in Greek, and is notable for the plan of its construction; which, departing radically from the method of Polybius, treated each important subject by itself. In other words his work is virtually a collection of monographs; the subject of each being one of the important wars of Rome. Appian has been charged with the opposite literary vice to that of Polybius; he is said to have thought more of manner than of matter. Nevertheless, he necessarily used the older writers for his facts, and if he sometimes used them carelessly and uncritically, these are faults of his time. In the main he shows a fair degree of accuracy. Accurate or otherwise, he is, as has been said, our sole source for certain important periods of the later time of the republic. If to the writers just named we add Dion Cassius; the general historian Trogus Pompeius (in Justin’s celebrated epitome); and of the biographers Plutarch and Cornelius Nepos; and supplement our list with the names of the so-called epitomators, Eutropius, Velleius, Florus, Aurelius Victor, Zonaras, Festus Rufus, and Orosius (writers who made brief but more or less valuable epitomes based on the authorities), we shall have named practically all the important historians of Rome to the end of the republic whose works are now available in anything like their original form. The modern historian gains incidental aid from various other fields: from the orations of Cicero, and the chance references of poets; from inscriptions on monuments and medals, and from the débris of ancient structures. Yet when all these have been examined, it is to the manuscripts that we must turn for the main incidents of the story. Of the modern historians of Rome whose works have had much to do with the earliest period, it is sufficient here to mention the names of Niebuhr, Arnold, and Mommsen. More detailed notices of both ancient and recent authorities will be given from time to time as we proceed. THE CHRONOLOGY OF EARLY ROMAN HISTORY A PRELIMINARY SURVEY, GIVING A CURSORY VIEW OF THE SWEEP OF EVENTS FIRST (LEGENDARY) PERIOD OF THE KINGS (TO ABOUT 510 B.C.) (All dates for this period are approximate.)