The Turanian tribes, who had so long inhabited Europe, were suddenly confronted by the victorious hosts of the Celts, the vanguard of the Aryans, the precursors of a higher culture. The movements of these primitive people could not fail to have a great effect on the human mind. It would become alert, keen, and active. Such was the state of ancient society when a knowledge of bronze was introduced—a discovery which consigned stone, hitherto the substance most commonly made use of to advance human interests, to a subordinate position, and opened up for man the exhaustless mineral stores of nature.
It is suggested by some that gold was the first metallic substance employed. Its glittering particles would attract the attention of primitive man, and little articles of ornament were early manufactured from it. To be sure, the supply was very limited; but what there was would serve the useful purpose of imparting to men some idea of metallic substances. Portions of it falling in the fire might have suggested the idea of smelting and of molding—might, at least, have lead to experiments in that line. The supply of gold existing in a native state is so small, that no use could have been made of it except for ornaments.
Iron, we know, is the most abundant mineral. But it is very rare in a native state, and its ores have nothing distinguishing about them, and so it is not strange that another metal received the attention of primitive man. That metal was probably copper. It is often found in a pure state in nature. In the Michigan mines of our own country, masses of pure copper many tons in weight have been discovered.5 No such rich deposits are found in the Old World; but considerable quantities of native copper were obtained, and it was by no means a rare metal. Copper possesses several qualities that would attract attention. It is quite malleable; that is, it can be easily hammered into shape. We can imagine the surprise of the old stone-workers at finding a stone that, instead of breaking or splitting, could be hammered into shape. By accident, or otherwise it would be learned, in time, that it could be melted. This would lead to the idea of molding.
If the above process were followed out, there would be a real Copper Age preceding that of Bronze: no trace of such an age has yet been detected in Europe. “But there is, however, every reason for believing, that, in some parts of the world, the use of native copper must have continued for a lengthened period before it was discovered that the addition of a small portion of tin not only rendered it more fusible, but added to its elasticity and hardness.”6 The absence of a Copper Age in Europe would imply that the art of manufacturing bronze was discovered in some other locality.