From the conception of race we attain that of people by considering the second as derived from the mingling of the first. Intercourse between the three great races of Europe has always existed as a result of migratory movements. The impulse to wander, however much it differed in each known instance, can usually be traced to a single determining cause, definable as the quest after comfort. This was the motive which led men of the Nordic race to abandon their uncomfortable habitat in the north. The same feeling was experienced by Alpine mountaineers as they descended towards attractive lowlands north and south of their rough mountain homes. Nordics moving to the south and Alpines crowding toward the lowland converged upon one another. No meeting of human beings, in the entire history of mankind, has been fraught with consequences of wider reach than the contact between members of these, the two hardiest races which the world has produced. European nationalities and Aryan languages were born in those momentous meetings. The zone of contact extended from the northwestern, lowland fringe of continental Europe to the saucer-shaped land of Polesia. Along the depressed margin of western Europe a heavy flow of Mediterranean men, moving constantly northward, introduced a third element in the racial constituents of French and British populations. Each of the three races contributed a characteristic share of physical and moral traits to the spirit of nationality in Europe. The Nordics left the impress of their northern vigor wherever they passed. Their native restlessness, the joint product of cold weather and a hard life, became converted into a magnificent spirit of enterprise whenever it blended with Alpine hardiness or Mediterranean ambition. The Alpines, often considered as the intellectual type, also imparted the virility of highland physiques as they migrated to the lowland. Last, but not least, Mediterranean men contributed the softness of their native character as well as the fine qualities due to a keen artistic sense. The fusion of the three races was accompanied by the creation of the three great groups of European peoples, known as Celts, Teutons and Slavs. The differentiation of these peoples from the fused group occurred at an early period and was probably in full swing towards the close of the Neolithic.