They called themselves Kymrians or Kimrians, whence the Romans made Cimbrians, which recalls Cimmerii or Cimmerians, the name of a people whom the Greeks placed on the western bank of the Black Sea and in the Cimmerian peninsula, called to this day Crimea.

During these irregular and successively repeated movements of wandering populations, it often happened that tribes of different races met, made terms, united, and finished by amalgamation under one name.

All the peoples that successively invaded Europe, Gauls, Kymrians, Germans, belonged at first, in Asia, whence they came, to a common stern; the diversity of their languages, traditions, and manners, great as it already was at the time of their appearance in the West, was the work of time and of the diverse circumstances in the midst of which they had lived; but there always remained amongst them traces of a primitive affinity which allowed of sudden and frequent comings, amidst their tumultuous dispersion.
The Kymrians, who crossed the Rhine and flung themselves into northern Gaul towards the middle of the fourth century B.C., called themselves Bolg, or Belg, or Belgians, a name which indeed is given to them by Roman writers, and which has remained that of the country they first invaded.
They descended southwards, to the banks of the Seine and the Marne.
There they encountered the Kymrians of former invasions, who not only had spread over the country comprised between the Seine and the Loire, to the very heart of the peninsula bordered by the latter river, but had crossed the sea, and occupied a portion of the large island opposite Gaul, crowding back the Gauls, who had preceded them, upon Ireland and the highlands of Scotland.

It was from one of these tribes and its chieftain, called Pryd or Prydain, Brit or Britain, that Great Britain and Brittany in France received the name which they have kept.
Each of these races, far from forming a single people bound to the same destiny and under the same chieftains, split into peoplets, more or less independent, who foregathered or separated according to the shifts of circumstances, and who pursued, each on their own account and at their own pleasure, their fortunes or their fancies.

The Ibero-Aquitanians numbered twenty tribes; the Gauls twenty-two nations; the original Kymrians, mingled with the Gauls between the Loire and the Garonne, seventeen; and the Kymro-Belgians twenty-three.