Nevertheless, it does seem clear that inventors did more to map out the direction of the progress just traced than any other single class of men. If we will fix our attention on any one invention about which we know enough—say, the water-clock—we can see that the original inventor of the water-clock (no matter who he was) had more influence on the history of the clock than any other man has had; and that the inventors of clocks who followed him had more influence on the clock than any other equal number of men had. This does not mean that the men who risked their money in making novel clocks did not influence the history of the clock materially; and it does not mean that the men who made good materials for them did not influence the history of the clock greatly; and it does not mean that the engineers and mechanics who operated them successfully did not influence its history. It would be absurd to pretend that each one of these men did not influence the history of the clock; for without them there would have been no successful clock. Nevertheless, in the nature of things, the original inventors must be credited with influencing the history of the clock more than any other equal number of men did, just as a father must be credited with influencing the history of his children more than any other man can, from the mere fact of his having caused them to be born. The inventors of clocks were the fathers of the clocks that they invented, and also the forefathers of all the inventions that proceed directly or indirectly from them.
What has been said about the clock applies with equal force to every other invented thing. Therefore, it can hardly be gainsaid that, so far as invented things are concerned, their inventors have had more influence on the history that has resulted from them than any other men have had.
If anyone will glance through any book of ancient history, he will realize that it is mainly a record of wars; the political changes caused by wars, or rendered possible by their means; the growth of nations and other organizations; the invention of certain mechanisms, arts and sciences; and the construction of certain structures such as temples, palaces and ships. All these agencies influenced ancient history, of course; but it is clear that the agency that influenced it the most obviously and immediately was the wars.
Yet let us remind ourselves that the real effect on history of any war was not exerted by the war itself, so much as by the result of the war. Let us also remind ourselves that the result of any war was because of the material forces engaged and the skill with which they were handled.
Now the material forces put onto the field of battle on each side in any of the wars were the product of the material resources of the country, of its wealth, its ability to manufacture weapons and transport troops; that is, of its utilization of invented mechanisms, processes and methods. The skill with which they were handled—(especially when supreme skill was exerted, as in the cases of Alexander and Cæsar)—was the outcome not of mere laborious training, not of mere knowledge, or courage, or carefully detailed arrangement, but of plans so conceived, developed and produced (invented) as to confront the enemy with unexpected situations that they were not prepared to meet. So the influence of even the wars seems to have been due fundamentally to invention.
As to the other agencies that influenced the course of ancient history, they seem to owe their influence even more obviously to invention than war does. Every department of ancient civilization seems traceable back to some invention or inventions. The whole of ancient civilization seems to rest primarily on inventions.
As inventions were made by inventors, we seem forced to the conclusion that inventors influenced ancient history more than any other one class did. This does not mean that the inventor of a child's toy influenced history more than did any one of the millions of wise and good men in each generation who helped to keep the machine of civilization working smoothly; for it refers to inventors as a class, and not to inventors as individuals.