Strabo, Geography

Now the whole Illyrian seaboard is exceedingly well supplied with harbors, not only on the continuous coast itself but also in the neighboring islands, although the reverse is the case with that part of the Italian seaboard which lies opposite, since it is harborless. But both seaboards in like manner are sunny and good for fruits, for the olive and the vine flourish there, except, perhaps, in places here or there that are utterly rugged. But although the Illyrian seaboard is such, people in earlier times made but small account of it—perhaps in part owing to their ignorance of its fertility, though mostly because of the wildness of the inhabitants and their piratical habits. But the whole of the country situated above this is mountainous, cold, and subject to snows, especially the northerly part, so that there is a scarcity of the vine, not only on the heights but also on the levels. These latter are the mountain-plains occupied by the Pannonians; on the south they extend as far as the country of the Dalmatians and the Ardiaei, on the north they end at the Ister, while on the east they border on the country of the Scordisci, that is, on the country that extends along the mountains of the Macedonians and the Thracians.