THE mighty movement of the nations, which led the Germanic peoples from their northern home into the interior of the Roman empire, and finally made them masters of the West, lasted about five hundred years, from its beginning in the Marcomannic War (A.D. 167) until, with the rise of the Franks and the enlargement of their state under the Merovingian kings, there emerged the firm foundations of a new system of government for the West which promised to be of long duration.