Some six hundred years after Christianity sprang up in the East and swept westwards, another great faith arose in almost the same eastern lands and followed it like its gigantic shadow. Like a shadow, it was at once a copy and a contrary. We call it Islam, or the creed of the Moslems; and perhaps its most explanatory description is that it was the final flaming up of the accumulated Orientalisms, perhaps of the accumulated Hebraisms, gradually rejected as the Church grew more European, or as Christianity turned into Christendom. Its highest motive was a hatred of idols, and in its view Incarnation was itself an idolatry. The two things it persecuted were the idea of God being made flesh and of His being afterwards made wood or stone. A study of the questions smouldering in the track of the prairie fire of the Christian conversion favours the suggestion that this fanaticism against art or mythology was at once a development and a reaction from that conversion, a sort of minority report of the Hebraists. In this sense Islam was something like a Christian heresy. The early heresies had been full of mad reversals and evasions of the Incarnation, rescuing their Jesus from the reality of his body even at the expense of the sincerity of his soul. And the Greek Iconoclasts had poured into Italy, breaking the popular statues and denouncing the idolatry of the Pope, until routed, in a style sufficiently symbolic, by the sword of the father of Charlemagne. It was all these disappointed negations that took fire from the genius of Mahomet, and launched out of the burning lands a cavalry charge that nearly conquered the world. And if it be suggested that a note on such Oriental origins is rather remote from a history of England, the answer is that this book may, alas! contain many digressions, but that this is not a digression. It is quite peculiarly necessary to keep in mind that this Semite god haunted Christianity like a ghost; to remember it in every European corner, but especially in our corner. If any one doubts the necessity, let him take a walk to all the parish churches in England within a radius of thirty miles, and ask why this stone virgin is headless or that coloured glass is gone. He will soon learn that it was lately, and in his own lanes and homesteads, that the ecstasy of the deserts returned, and his bleak northern island was filled with the fury of the Iconoclasts.