previously belonging to the kingdom of the Attalids devolved on the Romans the obligation hitherto resting on the kings of Pergamus to protect the Hellenes here against the Thracians.  From the double basis furnished by the valley of the Po and the province of Macedonia the Romans could now advance in earnest towards the region of the headwaters of the Rhine and towards the Danube, and possess themselves of the northern mountains at least so far as was requisite for the security of the lands to the south.

The Tribes at the Sources of the Rhine and along the Danube
Helvetii
Boii
Taurisci
Cerni
Raeti, Euganei, Veneti

In these regions the most powerful nation at that time was the great Celtic people, which according to the native tradition(10) had issued from its settlements on the Western Ocean and poured itself about the same time into the valley of the Po on the south of the main chain of the Alps and into the regions on the Upper Rhine and on the Danube to the north of that chain.  Among their various tribes, both banks of the Upper Rhine were occupied by the powerful and rich Helvetii, who nowhere came into immediate contact with the Romans and so lived in peace and in treaty with them:  at this time they seem to have stretched from the lake of Geneva to the river Main, and to have occupied the modern Switzerland, Suabia, and Franconia Adjacent to them dwelt the Boii, whose settlements were probably in the modern Bavaria and Bohemia.(11) To the south-east of these we meet with another Celtic stock, which made its appearance in Styria and Carinthia under the name of the Taurisci and afterwards of the Norici, in Friuli, Carniola, and Istria under that of the Carni.  Their city Noreia (not far from St. Veit to the north of Klagenfurt) was flourishing and widely known from the iron mines that were even at that time zealously worked in those regions; still more were the Italians at this very period allured thither by the rich seams of gold brought to light, till the natives excluded them and took this California of that day wholly into their own hands.  These Celtic hordes streaming along on both sides of the Alps had after their fashion occupied chiefly the flat and hill country; the Alpine regions proper and likewise the districts along the Adige and the Lower Po were not occupied by them, and remained in the hands of the earlier indigenous population.  Nothing certain has yet been ascertained as to the nationality of the latter; but they appear under the name of the Raeti in the mountains of East Switzerland and the Tyrol, and under that of the Euganei and Veneti about Padua and Venice; so that at this last point the two great Celtic streams almost touched each other, and only a narrow belt of native population separated the Celtic Cenomani about Brescia from the Celtic Carnians in Friuli.  The Euganei and Veneti had long been peaceful subjects of the Romans; whereas the peoples of the Alps proper were not only still free, but made