Theodor Mommsen,
The Provinces of the Roman Empire…
“ Late civilisation in Raetia.The destinies of Raetia were so closely interwoven with those of the upper German province that we might refer for them to the earlier narrative. Roman civilisation here, taken as a whole, underwent but little development. The highlands of the Alps with the valleys of the upper Inn and the upper Rhine embraced a weak and peculiar population, probably the same as had once possessed the eastern half of the north–Italian plain, perhaps akin to the Etruscans. Driven back thence by the Celts, and perhaps also by the Illyrici, it held its ground in the northern mountains. ”
