name of a new thing or of a new idea that has spread over the world quite recently. "Gas," for instance is a word that was made by Van Helmont, a Dutch chemist, about 1625, and has spread into most civilized tongues, and "tobacco" again is an American-Indian word which followed the introduction of smoking almost everywhere. But if the same word turns up in a number of languages, and if it follows the characteristic modifications of each language, we may feel sure that it has been in that language, and a part of that language, since the beginning, suffering the same changes with the rest of it. We know, for example, that the words for waggon and wheel run in this fashion through the Aryan tongues, and so we are able to conclude that the primitive Aryans, the more purely Nordic Aryans, had waggons, though it would seem from the absence of any common roots for spokes, rim, or axle that their wheels were not wheelwright's wheels with spokes, but made of the trunks of trees shaped out with an axe between the ends.
These primitive waggons were drawn by oxen. The early Aryans did not ride or drive horses; they had very little to do with horses. The Reindeer men were a horse-people, but the Neolithic Aryans were a cow-people. They ate beef, not horse; and after many ages they began this use of draught cattle. They reckoned wealth by cows. They wandered, following pasture, and "trekking" their goods, as the South African Boers do, in ox-waggons, though of course their waggons were much clumsier than any to be found in the world to-day. They probably ranged over very wide areas. They were migratory, but not in the strict sense of the word "nomadic"; they moved in a slower, clumsier fashion than did the later, more specialized nomadic peoples. They were forest and parkland people without horses. They were developing a migratory life out of the more settled "forest clearing" life of the earlier Neolithic period. Changes of climate which were replacing forest by pasture, and the accidental burning of forests by fire may have assisted this development.
When these early "Aryans" came to big rivers or open water, they built boats, at first hollow tree trunks and then skin-covered frameworks of lighter wood. Before history began there was already some Aryan canoe-traffic across the English Channel