When the seas which separated Russia from Asia dried, when the isolation and exacting climate of the north had done their work and produced the vigorous Nordic type, and when in the fulness of time bronze for their weapons reached them these men burst upon the southern races, conquering east, south and west. They brought with them from the north the hardihood and vigor acquired under the rigorous selection of a long winter season and vanquished in battle the inhabitants of older and feebler civilizations, but only to succumb in their turn to the softening influences of a life of ease and plenty in their new homes. The earliest recorded appearance of Aryan-speaking Nordics is our first dim vision of the Sacæ introducing Sanskrit into India, the Cimmerians pouring through the passes of the Caucasus from the grasslands of South Russia to invade the Empire of the Medes and the Achæans and Phrygians conquering Greece and the Ægean coast of Asia Minor. About 1100 B. C. Nordics enter Italy as Umbrians and Oscans and soon after other Nordics cross the Rhine into Gaul. The latter were the western vanguard of the Celtic-speaking tribes which had long occupied those districts in Germany which lay south and west of the Teutonic Nordics. These Teutons at this early date were confined probably to Scandinavia and the immediate shores of the Baltic and were just beginning to press southward. This first Celtic wave of Nordics seems to have swept westward along the sandy plains of northern Europe, and entered France through the Low Countries. From this point as Goidels they spread north into Britain, reaching there about 800 B. C. As Gauls they conquered all France and pushed on southward and westward into Spain and over the Maritime Alps into northern Italy, where they encountered the kindred Nordic Umbrians, who at an earlier date had crossed the Alps from the northeast. Other Celtic-speaking Nordics apparently migrated up the Rhine and down the Danube and by the time the Romans came on the scene the Alpines of central Europe had been thoroughly Celticized. These tribes pushed eastward into southern Russia and reached the Crimea as early as the fourth century B. C. Mixed with the natives, they were called by the Greeks the Celto-Scyths. This swarming out of what is now called Germany of the first Nordics was during the closing phases of the Bronze Period and was contemporary with and probably caused by the first great expansion of the Teutons from Scandinavia by way both of Denmark and the Baltic coasts.