No greater misfortune could have occurred both for Islam and for the world at large. For Islam it meant the rule of dull-witted bigots under which enlightened progress was impossible. Of course Islam did gain a great accession of warlike strength, but this new power was so wantonly misused as to bring down disastrous repercussions upon Islam itself. The first notable exploits of the immigrant Turkish hordes were their conquest of Asia Minor and their capture of Jerusalem, both events taking place toward the close of the eleventh century[4]. Up to this time Asia Minor had remained part of the Christian world. The original Arab flood of the seventh century, after overrunning Syria, had been stopped by the barrier of the Taurus Mountains; the Byzantine Empire had pulled itself together; and thenceforth, despite border bickerings, the Byzantine-Saracen frontier had remained substantially unaltered. Now, however, the Turks broke the Byzantine barrier, overran Asia Minor, and threatened even Constantinople, the eastern bulwark of Christendom. As for Jerusalem, it had, of course, been in Moslem hands since the Arab conquest of a.d. 637, but the caliph Omar had carefully respected the Christian "Holy Places," and his successors had neither persecuted the local Christians nor maltreated the numerous pilgrims who flocked perennially to Jerusalem from every part of the Christian world. But the Turks changed all this. Avid for loot, and filled with bigoted hatred of the "Misbelievers," they sacked the holy places, persecuted the Christians, and rendered pilgrimage impossible.

The effect of these twin disasters upon Christendom, occurring as they did almost simultaneously, was tremendous. The Christian West, then at the height of its religious fervour, quivered with mingled fear and wrath. Myriads of zealots, like Peter the Hermit, roused all Europe to frenzy. Fanaticism begat fanaticism, and the Christian West poured upon the Moslem East vast hosts of warriors in those extraordinary expeditions, the Crusades.

The Turkish conquest of Islam and its counterblast, the Crusades, were an immense misfortune for the world. They permanently worsened the relations between East and West. In the year a.d. 1000 Christian-Moslem relations were fairly good, and showed every prospect of becoming better. The hatreds engendered by Islam's first irruption were dying away. The frontiers of Islam and Christendom had become apparently fixed, and neither side showed much desire to encroach upon the other. The only serious debatable ground was Spain, where Moslem and Christian were continually at hand-grips; but, after all, Spain was mutually regarded as a frontier episode. Between Islam and Christendom, as a whole, intercourse was becoming steadily more friendly and more frequent. This friendly intercourse, if continued, might ultimately have produced momentous results for human progress. The Moslem world was at that time still well ahead of western Europe in knowledge and culture, but Saracenic civilization was ossifying, whereas the Christian West, despite its ignorance, rudeness, and barbarism, was bursting with lusty life and patently aspiring to better things. Had the nascent amity of East and West in the eleventh century continued to develop, both would have greatly profited. In the West the influence of Saracenic culture, containing, as it did, the ancient learning of Greece and Rome, might have awakened our Renaissance much earlier, while in the East the influence of the mediæval West, with its abounding vigour, might have saved Moslem civilization from the creeping paralysis which was overtaking it.

But it was not to be. In Islam the refined, easygoing Saracen gave place to the bigoted, brutal Turk. Islam became once more aggressive—not, as in its early days, for an ideal, but for sheer blood-lust, plunder, and destruction. Henceforth it was war to the knife between the only possible civilization and the most brutal and hopeless barbarism. Furthermore, this war was destined to last for centuries. The Crusades were merely Western counter-attacks against a Turkish assault on Christendom which continued for six hundred years and was definitely broken only under the walls of Vienna in 1683. Naturally, from these centuries of unrelenting strife furious hatreds and fanaticisms were engendered which still envenom the relations of Islam and Christendom. The atrocities of Mustapha Kemal's Turkish "Nationalists" and the atrocities of the Greek troops in Asia Minor, of which we read in our morning papers, are in no small degree a "carrying on" of the mutual atrocities of Turks and Crusaders in Palestine eight hundred years ago.

With the details of those old wars between Turks and Christians this book has no direct concern. The wars themselves should simply be noted as a chronic barrier between East and West. As for the Moslem East, with its declining Saracenic civilization bowed beneath the brutal Turkish yoke, it was presently exposed to even more terrible misfortunes. These misfortunes were also of Turanian origin. Toward the close of the twelfth century the eastern branches of the Turanian race were welded into a temporary unity by the genius of a mighty chieftain named Jenghiz Khan. Taking the sinister title of "The Inflexible Emperor," this arch-savage started out to loot the world. He first overran northern China, which he hideously ravaged, then turned his devastating course toward the west. Such was the rise of the terrible "Mongols," whose name still stinks in the nostrils of civilized mankind. Carrying with them skilled Chinese engineers using gunpowder for the reduction of fortified cities, Jenghiz Khan and his mounted hosts proved everywhere irresistible. The Mongols were the most appalling barbarians whom the world has ever seen. Their object was not conquest for settlement, not even loot, but in great part a sheer satanic lust for blood and destruction. They revelled in butchering whole populations, destroying cities, laying waste countrysides—and then passing on to fresh fields.

Jenghiz Khan died after a few years of his westward progress, but his successors continued his work with unabated zeal. Both Christendom and Islam were smitten by the Mongol scourge. All eastern Europe was ravaged and re-barbarized, the Russians showing ugly traces of the Mongol imprint to this day. But the woes of Christendom were as nothing to the woes of Islam. The Mongols never penetrated beyond Poland, and western Europe, the seat of Western civilization, was left unscathed. Not so Islam. Pouring down from the north-east, the Mongol hosts whirled like a cyclone over the Moslem world from India to Egypt, pillaging, murdering, and destroying. The nascent civilization of mediæval Persia, just struggling into the light beneath the incubus of Turkish harryings, was stamped flat under the Mongol hoofs, and the Mongols then proceeded to deal with the Moslem culture-centre—Bagdad. Bagdad had declined considerably from the gorgeous days of Haroun-al-Rashid, with its legendary million souls. However, it was still a great city, the seat of the caliphate and the unquestioned centre of Saracenic civilization. The Mongols stormed it (a.d. 1258), butchered its entire population, and literally wiped Bagdad off the face of the earth. And even this was not the worst. Bagdad was the capital of Mesopotamia. This "Land between the Rivers" had, in the very dawn of history, been reclaimed from swamp and desert by the patient labours of half-forgotten peoples who, with infinite toil, built up a marvellous system of irrigation that made Mesopotamia the perennial garden and granary of the world. Ages had passed and Mesopotamia had known many masters, but all these conquerors had respected, even cherished, the irrigation works which were the source of all prosperity. These works the Mongols wantonly, methodically destroyed. The oldest civilization in the world, the cradle of human culture, was hopelessly ruined; at least eight thousand years of continuous human effort went for naught, and Mesopotamia became the noisome land it still remains to-day, parched during the droughts of low water, soaked to fever-stricken marsh in the season of river-floods, tenanted only by a few mongrel fellahs inhabiting wretched mud villages, and cowed by nomad Bedouin browsing their flocks on the sites of ancient fields.

The destruction of Bagdad was a fatal blow to Saracenic civilization, especially in the East. And even before that dreadful disaster it had received a terrible blow in the West. Traversing North Africa in its early days, Islam had taken firm root in Spain, and had so flourished there that Spanish Moslem culture was fully abreast of that in the Moslem East. The capital of Spanish Islam was Cordova, the seat of the Western caliphate, a mighty city, perhaps more wonderful than Bagdad itself. For centuries Spanish Islam lived secure, confining the Christians to the mountainous regions of the north. As Saracen vigour declined, however, the Christians pressed the Moslems southward. In 1213 Spanish Islam was hopelessly broken at the tremendous battle of Las Navas de Tolosa. Thenceforth, for the victorious Christians it was a case of picking up the pieces. Cordova itself soon fell, and with it the glory of Spanish Islam, for the fanatical Christian Spaniards extirpated Saracenic civilization as effectually as the pagan Mongols were at that time doing. To be sure, a remnant of the Spanish Moslems held their ground at Granada, in the extreme south, until the year Columbus discovered America, but this was merely an episode. The Saracen civilization of the West was virtually destroyed.

Meanwhile the Moslem East continued to bleed under the Mongol scourge. Wave after wave of Mongol raiders passed over the land, the last notable invasion being that headed by the famous (or rather infamous) Tamerlane, early in the fifteenth century. By this time the western Mongols had accepted Islam, but that made little difference in their conduct. To show that Tamerlane was a true scion of his ancestor Jenghiz Khan, it may be remarked that his foible was pyramids of human skulls, his prize effort being one of 70,000 erected after the storming of the Persian city of Ispahan. After the cessation of the Mongol incursions, the ravaged and depopulated Moslem East fell under the sway of the Ottoman Turks.

The Ottoman Turks, or "Osmanli," were originally merely one of the many Turkish hordes which entered Asia Minor after the downfall of Byzantine rule. They owed their greatness mainly to a long line of able sultans, who gradually absorbed the neighbouring Turkish tribes and used this consolidated strength for ambitious conquests both to east and west. In 1453 the Osmanli extinguished the old Byzantine Empire by taking Constantinople, and within a century thereafter they had conquered the Moslem East from Persia to Morocco, had subjugated the whole Balkan Peninsula, and had advanced through Hungary to the walls of Vienna. Unlike their Mongol cousins, the Ottoman Turks built up a durable empire. It was a barbarous sort of empire, for the Turks understood very little about culture. The only things they could appreciate were military improvements. These, however, they thoroughly appreciated and kept fully abreast of the times. In their palmy days the Turks had the best artillery and the steadiest infantry in the world, and were the terror of Europe.

Meantime Europe was awakening to true progress and higher civilization. While the Moslem East was sinking under Mongol harryings and Turkish militarism, the Christian West was thrilling to the Renaissance and the discoveries of America and the water route to India. The effect of these discoveries simply cannot be over-estimated. When Columbus and Vasco da Gama made their memorable voyages at the end of the fifteenth century, Western civilization was pent up closely within the restricted bounds of west-central Europe, and was waging a defensive and none-too-hopeful struggle with the forces of Turanian barbarism. Russia lay under the heel of the Mongol Tartars, while the Turks, then in the full flush of their martial vigour, were marching triumphantly up from the south-east and threatening Europe's very heart. So strong were these Turanian barbarians, with Asia, North Africa, and eastern Europe in their grasp, that Western civilization was hard put to it to hold its own. Western civilization was, in fact, fighting with its back to the wall—the wall of a boundless ocean. We can hardly conceive how our mediæval forefathers viewed the ocean. To them it was a numbing, constricting presence; the abode of darkness and horror. No wonder mediæval Europe was static, since it faced on ruthless, aggressive Asia, and backed on nowhere. Then, in the twinkling of an eye, the sea-wall became a highway, and dead-end Europe became mistress of the ocean—and thereby mistress of the world.