As far as history can carry us back, the whole of Western Europe, namely, Gaul, a part of Spain, Northern Italy, and what we call to-day the British Isles, are found to be peopled by a race apparently of the same origin, divided into an immense number of small republics; governed patriarchally in the form of clans, called by Julius Caesar, "Civitates." The Greeks called them Celts, "Keltai." They do not appear to have adopted a common name for themselves, as the idea of what we call nationality would never seem to have occurred to them. Yet the name of Gaels in the British Isles, and of Gauls in France and Northern Italy, seems identical. Not only did they fill the large expanse of territory we have mentioned, but they multiplied so fast, that they were compelled to send out armed colonies in every direction, set as they were in the midst of thickly-peopled regions. We possess few details of their first invasion of Spain; but Roman history has made us all acquainted with their valor. It was in the first days of the Republic that an army of Gauls took possession of Rome, and the names of Manlius and Camillus are no better known in history than that of Brenn, called by Livy, Brennus. His celebrated answer, "Vae victis," will live as long as the world. Later on, in the second century before Christ, we see another army of Celts starting from Pannonia, on the Danube, where they had previously settled, to invade Greece. Another Brenn is at the head of it. Macedonia and Albania were soon conquered; and, it is said, some of the peculiarities of the race may still be remarked in many Albanians. Thessaly could not resist the impetuosity of the invaders; the Thermopylae were occupied by Gallic battalions, and that celebrated defile, where three hundred Spartans once detained the whole army of Xerxes, could offer no obstacle to Celtic bravery. Hellas, sacred Hellas, came then under the power of the Gauls, and the Temple of Delphi was already in sight of Brenn and his warriors, when, according to Greek historians, a violent earthquake, the work of the offended gods, threw confusion into the Celtic ranks, which were subsequently easily defeated and destroyed by the Greeks. A branch of this army of the Delphic Brenn had separated from the main body on the frontiers of Thrace, taken possession of Byzantium, the future Constantinople, and, crossing the straits, established itself in the Heart of Asia Minor, and there founded the state of Galatia, or Gallo-Greece, which so long bore their name, and for several centuries influenced the affairs of Asia and of the whole Orient, where they established a social state congenial to their tastes and customs. But the Romans soon after invading Asia Minor, the twelve clannish republics formerly founded were, according to Strabo, first reduced to three, then to two, until finally Julius Caesar made Dejotar king of the whole country.