"If there is any point in the annals of Greece at which we can draw the line between the days of myth and legend and the beginnings of authentic history, it is at the moment of the great migrations. Just as the irruption of the Teutonic tribes into the Roman empire in the 5th century after Christ marks the commencement of an entirely new era in modern Europe, so does the invasion of Southern and Central Greece by the Dorians, and the other tribes whom they set in motion, form the first landmark in a new period of Hellenic history. Before these migrations we are still in an atmosphere which we cannot recognize as that of the historical Greece that we know. The states have different boundaries, some of the most famous cities have not yet been founded, tribes who are destined to vanish occupy prominent places in the land, royal houses of a foreign stock are established everywhere, the distinction between Hellene and Barbarian is yet unknown. We cannot realize a Greece where Athens is not yet counted as a great city, while Mycenae is a seat of empire; where the Achaian element is everywhere predominant, and the Dorian element is as yet unknown. When, however, the migrations are ended, we at once find ourselves in a land which we recognize as the Greece of history. The tribes have settled into the districts which are to be their permanent abodes, and have assumed their distinctive characters. … The original impetus which set the Greek tribes in motion came from the north, and the whole movement rolled southward and eastward. It started with the invasion of the valley of the Peneus by the Thessalians, a warlike but hitherto obscure tribe, who had dwelt about Dodona in the uplands of Epirus. They crossed the passes of Pindus, and flooded down into the great plain to which they were to give their name. The tribes which had previously held it were either crushed and enslaved, or pushed forward into Central Greece by the wave of invasion. Two of the displaced races found new homes for themselves by conquest. The Arnaeans, who had dwelt in the southern lowlands along the courses of Apidanus and Enipeus, came through Thermopylae, pushed the Locriams aside to right and left, and descended into the valley of the Cephissus, where they subdued the Minyae of Orchomenus [see MINYI], and then, passing south, utterly expelled the Cadmeians of Thebes. The plain country which they had conquered received a single name. Boeotia became the common title of the basins of the Cephissus and the Asopus, which had previously been in the hands of distinct races. Two generations later the Boeotians endeavoured to cross Cithaeron, and add Attica to their conquests; but their king Xanthus fell in single combat with Melanthus, who fought in behalf of Athens, and his host gave up the enterprise. In