In proportion as an historical matter is of import to human kind, in that proportion does it spring not from apparent—let alone material—causes, but from some hidden revolution in the human spirit. To pretend an examination of the secret springs whence the human mind is fed is futile. The greater the affair, the more directly does it proceed from unseen sources which the theologian may catalogue, the poet see in vision, the philosopher explain, but with which positive external history cannot deal, and which the mere historian cannot handle. It is the function of history to present the outward thing, as a witness might have seen it, and to show the reader as much as a spectator could have seen—illuminated indeed by a knowledge of the past—and a judgment drawn from known succeeding events. The historian answers the question, “What was?” this or that. To the question, “Why was it?” if it be in the spiritual order (as are all major things), the reader must attempt his own reply based upon other aptitudes than those of historic science.

It is the neglect of this canon which makes barren so much work upon the past. Read Gibbon’s attempt to account for “why” the Catholic Church arose in the Roman Empire, and mark his empty failure. [Footnote: It is true that Gibbon was ill equipped for his task because he lacked historical imagination. He could not grasp the spirit of a past age. He could not enter into any mood save that of his master, Voltaire. But it is not only true of Gibbon that he fails to explain the great revolution of A.D. 29-304. No one attempting that explanation has succeeded. It was not of this world.]

Mark also how all examination of the causes of the French Revolution are colored by something small and degraded, quite out of proportion to that stupendous crusade which transformed the modern world. The truth is, that the historian can only detail those causes, largely material, all evident and positive, which lie within his province, and such causes are quite insufficient to explain the full result. Were I here writing “Why” the Reformation came, my reply would not be historic, but mystic. I should say that it came “from outside mankind.” But that would be to affirm without the hope of proof, and only in the confidence that all attempts at positive proof were contemptible. Luckily I am not concerned in so profound an issue, but only in the presentation of the thing as it was. Upon this I now set out.

With the close of the Middle Ages two phenomena appeared side by side in the society of Europe. The first was an ageing and a growing fatigue of the simple mediæval scheme; the second was a very rapid accretion of technical power.

As to the first I have suggested (it is no more than a suggestion), that the mediæval scheme of society, though much the best fitted to our race and much the best expression which it has yet found, though especially productive of happiness (which here and hereafter is the end of man), was not properly provided with instruments of survival.

Its science was too imperfect, its institutions too local, though its philosophy was the widest ever framed and the most satisfying to the human intelligence.

Whatever be the reason, that society did rapidly grow old. Its every institution grew formal or debased. The Guilds from true coöperative partnerships for the proper distribution of the means of production, and for the prevention of a proletariat with its vile cancer of capitalism, tended to become privileged bodies. Even the heart of Christian Europe, the village, showed faint signs that it might become an oligarchy of privileged farmers with some land and less men at their orders. The Monastic orders were tainted in patches up and down Europe, with worldliness, with an abandonment of their strict rule, and occasionally with vice. Civil government grew befogged with tradition and with complex rules. All manner of theatrical and false trappings began to deform society, notably the exaggeration of heraldry and a riot of symbolism of which very soon no one could make head or tail.

The temporal and visible organization of the Church did not escape in such a welter. The lethargy, avarice, and routine from which that organization suffered, has been both grossly exaggerated and set out of perspective. A wild picture of it has been drawn by its enemies. But in a degree the temporal organization of the Church had decayed at the close of the Middle Ages. It was partly too much a taking of things for granted, a conviction that nothing could really upset the unity of Europe; partly the huge concentration of wealth in clerical hands, which proceeded from the new economic activity all over Europe, coupled with the absolute power of the clergy in certain centres and the universal economic function of Rome; partly a popular loss of faith. All these between them helped to do the business. At any rate the evil was there.

All institutions (says Machiavelli) must return to their origins, or they fail. There appeared throughout Europe in the last century of united Europe, breaking out here and there, sporadic attempts to revivify the common life, especially upon its spiritual side, by a return to the primitive communal enthusiasms in which religion necessarily has its historical origins.

This was in no way remarkable. Neither was it remarkable that each such sporadic and spontaneous outburst should have its own taint or vice or false color.