All classic writers who have written upon the subject agree in attributing great wealth to Southern Arabia, a land familiar to antiquity as Saba, or Sheba. Herodotus, Strabo, and Pliny frequently allude to it as the richest country on the globe. Its agricultural resources, dependent upon a vast and intricate hydraulic system which embraced hundreds of leagues of productive territory, were the principal basis of its prosperity. Its streams were confined by massive walls of masonry of cyclopean dimensions and by great embankments. One of these reservoirs was eighteen miles in circuit and a hundred and twenty feet deep. Its stones were laid in bitumen and bolted together with iron rods. Many others, inferior in dimensions and of not less solid construction, collected and retained the melted snows of the mountains. The flow of water was regulated by sluices, and its apportionment rigidly prescribed by law. This thorough system of irrigation, applied to a soil of prodigious fertility under a tropical sun, eventually produced results rivalling those of the vaunted plantations of Babylonia. An innumerable population, distributed throughout this favored territory in hundreds of cities and villages, carried to its highest perfection the cultivation of the soil. The daily expenses of the royal household were fifteen Babylonian talents, eighty-five thousand five hundred dollars of our money. It is related that Mareb, the capital, stood in a vast expanse of perennial verdure, where the branches of the trees, touching each other, formed a vault of continuous shade over the highways, of such extent that a horseman would require a journey of two months’ duration to traverse the cultivated portion of the realm of the monarchs of Saba. One of the latter was the famous Queen Balkis, the friend and admirer of Solomon.

In a region so fortunately situated for commerce, mercantile activity kept pace with agricultural development. The merchants of Saba enjoyed a reputation for shrewdness, ability, wealth, and enterprise not inferior to that of the Phœnicians themselves. They engaged in transactions involving immense pecuniary investments. They despatched great fleets to China. Their caravans traversed the Syrian and African deserts. They exported to Persia annually a thousand talents weight of frankincense. Not only did they purchase directly the commodities in which they dealt, but they also bought and sold extensively on commission. Their warehouses were filled with the rich products of a score of climes; silver vessels; ingots of copper, tin, iron, and lead; honey and wax; silks, ivory, ebony, coral, agates; civet, musk, myrrh, camphor, and other aromatics, some of which were worth many times their weight in gold. Such was their prodigal luxury that only sandal-wood and cinnamon were used as fuel in the preparation of their food. The vegetable kingdom contributed no insignificant share to the commercial wealth of Southern Arabia. Coffee, indigenous to the Peninsula, was exported as a luxury to the provinces of Asia. In that dry climate, where flourished every known variety of cereals, grain could be stored without injury for thirty years. The cotton-plant, the sugar-cane, the cocoa-palm, yielded enormous revenues to those who engaged in their culture. The balsam of Mecca, the gum Arabic, the sap of the Acacia Vera, and the famed frankincense were also important articles of export. The country was reputed to be rich in minerals; inexhaustible deposits of salt existed in Saba; gold was found in the mountains; but Arabia produced no iron, which Strabo says in his time was equal in value to the precious metals. The pearl fisheries of the coast, opposite to the Isles of Bahrein, were unrivalled for the beauty and value of their products.

For an unknown period, embracing, however, many centuries, the prosperity of the kingdom of Saba continued. Then it suddenly declined; a general emigration took place, and the former paradise was transformed into an uninhabited desert. The cause of this great and profound change, involving the desolation of a vast region and the dispersion of an entire people, is hidden in obscurity. The puerile fables which attribute it to a threatened inundation from the rupture of a dike are unworthy of notice. It is probable that this calamity was mainly due to the diversion of the caravan traffic to the channels of the Red Sea, to the abandonment of stations, to the cessation of revenue, and to the consequent dearth of the means of subsistence. Foreign wars or domestic convulsions, which, aided by increasing luxury and subsequent weakness, also contributed to drain the resources and exhaust the population of the kingdom, may have hastened the ultimate catastrophe that is supposed to have occurred during the first century of the Christian era.

From this epoch the traditions of the Arabs become more and more confused. Some tribes seem to have emigrated to Mesopotamia, others to have settled in the vicinity of Medina, then called Yathreb, where they intermarried with the Jews already established in that city. We know nothing further of Arabian annals till the promulgation of the faith of Islam began a new chapter in the history of nations. Before the Hegira no date could be fixed with certainty, as there was no chronological system by which to ascertain the year of an historical occurrence, and no public or private records existed to preserve it. But a step beyond the unreliable transmission of past events by tradition were the inscriptions occasionally made upon the shoulder-blades of animals. Not only was the material indispensable to the scribe entirely wanting, but the ability to use it was possessed by only an insignificant number of the people. Among the nomadic Bedouins contempt for literary accomplishments, except that of extemporaneous poetical composition, universally prevailed. Even in the great commercial city of Mecca, at the time of the publication of the Koran, there was but one man who could write. It was not without reason that Mohammed designated the long and obscure period preceding the Hegira, the Age of Ignorance.

Arabia, alone among the countries accessible to the ambition of the powerful sovereigns of antiquity, escaped the humiliation of conquest. The genius of Alexander had planned its subjugation, but death prevented the realization of his vast, perhaps impracticable, design. The legions of Augustus, trained under the discipline of the greatest of the Cæsars, proved unequal to the task of triumphing over a region where the soil, the elements, and the valor of its defenders formed a combination invincible by human prowess. The Persians, for a period of insignificant duration, occupied the western and southern coasts, having previously expelled the Abyssinians, who had invaded and retained a portion of Yemen during the sixth century. No nation, however, was ever able to claim supremacy over any considerable portion of the Arabian Peninsula. For this immunity it was indebted not only to the natural obstacles which defied the advance and the maintenance of an invading army, but also to the superstitious fears with which cunning and credulity had surrounded its name. It was a land of mysterious portents and prodigies, whose borders were guarded by malignant demons; whose deserts, all but impenetrable to the boldest adventurer, were inhabited by cannibal giants and monstrous birds of prey that watched over treasures placed by evil spirits under the spell of enchantment. Every caravan that left Phœnicia for Central Arabia carried quantities of storax, which the Tyrian merchants declared was burnt in the neighborhood of the frankincense shrubs, that its offensive fumes might drive away the winged serpents which were their custodians. The climate was said to be so pestilential that slaves and criminals alone were employed to gather the precious gum, their liberty being conditional upon their success. These politic inventions, implicitly believed by the ignorant, while they insured to the shrewd traders of Phœnicia a monopoly of the valuable products of the Peninsula, exercised no inconsiderable influence over the popular mind of the ancients, and clothed the Desert with terrors which even the reputation and allurements of its prodigious wealth were unable entirely to overcome.

As a result of its exemption from foreign dominion, no other country has preserved the integrity of its customs, its language, and the personality of its inhabitants to such a degree as Arabia. It alone still presents a picture of the government and the domestic economy of patriarchal antiquity. Its manners are those which prevailed centuries before the time of Abraham. The wonderfully sonorous and flexible idiom of the Koran was already formed before the Bible or the Iliad was written. The absolute immobility of the Arabian in his native haunts, contrasted with his ready adaptation to diametrically opposite conditions elsewhere, is one of the most striking anomalies of human character. The influence of Greece and Rome, whose taste in art and maxims of government have left their traces wherever either the valor or the enterprise of those nations has been able to obtain a foothold, is not perceptible in the political or domestic history of Arabia. No ruins of any majestic structure raised by the master-hand of the Athenian or Roman architect have ever been discovered in the great Peninsula, the accounts of whose commercial wealth were matters of popular faith and wonder throughout the ancient world. And, what is probably a more conclusive indication of the permanent absence of foreign influence than any other, however plausible, no name with a Greek or Latin termination has survived in the dialects of those Arabian settlements most intimately associated with the trade of Europe for many centuries.

This inflexibility of national peculiarities becomes invaluable in tracing the causes of the decay and disruption of the great Moslem empires which subsequently dominated so large a portion of the globe. The ethnography of a people who have stamped their characteristics deeply upon succeeding ages; whose customs, laws, and language have, to a certain degree, survived their dominion; the analogy between the religious dogmas which they professed and those which have supplanted them; the play of passions, destructive or beneficent, exhibited by those rulers whom hereditary descent or the accident of fortune raised to supreme authority; the development of the transplanted race, its precocious maturity, the lasting effects of its intellectual supremacy, and its slow but inevitable decline, are circumstances well deserving the attentive scrutiny of the philosophical historian. The absence of reliable information renders impossible an accurate conception of the mental and physical traits of the Arab of two thousand years ago. But, as we know the extreme conservatism of Orientals, their pronounced aversion to change, the obstinate persistence of their traditions, and the general outlines of their character, we may with safety assume that the shepherd who now roams over the desert plateaus of Nejd and Oman is the intellectual counterpart of the Amalekite of the Bible, and that the Arab whose features are sculptured upon the eternal walls of Edfou and Karnak did not differ in any material respect from the predatory Bedouin of to-day. It is a strange anomaly in a land, the greater portion of which, either through the obduracy of Nature or the indolence of its inhabitants, had been for ages condemned to eternal sterility and isolated by sea and desert from contemporaneous civilization, to encounter a race whose genius was capable of at once adapting itself, with equal facility, to the formation and development of an agricultural system surpassing that of any other people, ancient or modern; to the invention of mechanical devices of marvellous ingenuity; to the solution of the most abstruse mathematical problems; to the perfection of a graceful and exquisite order of architecture, unique in design, infinite in detail, remarkable in execution, unrivalled in beauty of ornament; to the protracted investment of cities and the attainment and exercise of that proficiency in the intricate system of military tactics indispensable to success in the art of war; to the foundation and the preservation of empires. A long and tedious apprenticeship is usually required for the attainment to perfection in any of these accomplishments; but the versatile Arab seemed, by intuition, to be able to grasp them all, without previous experience or instruction. In literature, as well, was this pre-eminence of genius disclosed. Poetry was the sole form of literary manifestation appreciated by the Arabic mind; improvisation the only talent it deemed worthy of applause. Even among the most intelligent, nothing deserving of the name of history was preserved; and the genealogies upon which the Arabs prided themselves were merely interminable lists of barbarians of local or tribal celebrity, and dreary catalogues of idols. Yet their predatory hordes effected a great intellectual revolution in every country which submitted to their sway. In addition to their own memorable achievements, they developed and expanded, to the utmost, the mental faculties of their subjects and tributaries. By precept and example, they aroused the emulation and rewarded the efforts of all who struggled to escape from the fetters of ignorance which had been riveted by the superstition and prejudice of ages passed in ignominious servitude. Their conquests in the world of letters offer a far more noble title to renown than the laurels won on fields of appalling carnage or the prestige acquired by the subjugation of vast provinces and kingdoms. To the finest literary productions of modern times does this subtle intellectual power extend. The impress of Arabian genius can be detected in the novels of Boccaccio, in the romances of Cervantes, in the philosophy of Voltaire, in the “Principia” of Newton, in the tragedies of Shakspeare. Its domain is coincident with the boundaries of modern civilization, its influence imperishable in its character.

These far-reaching results are neither derived from spontaneous impulse nor are they of fortuitous origin. They indicate unmistakably a gradual and incessant advance through long periods of time. The inexorable laws which control the destiny of man require a transition through many connected forms, insensibly merging into each other, eventually to effect radical changes in the mental and physical characteristics of individuals and nations. The evolution of a race, like the development of architectural construction, is slow but progressive. The union between the foundation and the superstructure is evident, although the former may not at the first glance be visible. A great distance separates the barbaric sheik of pre-Islamic Arabia and the powerful and enlightened khalifs of Bagdad and Cordova. Yet both the Abbaside and the Ommeyade dynasties traced their lineage directly to the Bedouin robbers, who, each year, waylaid the Mecca caravan. There is no apparent resemblance between the rude structures of prehistoric antiquity and the matchless edifices erected by Athenian genius and skill. It cannot be disputed, however, that the unhewn and misshapen shaft of the cyclopean quarry, which had neither fluting nor volute, base nor capital, was the architectural prototype of the superb columns which adorned the temples of ancient Greece and Rome. In view of the rapid advance of the Arabs under Mohammed’s successors, we are forced to concede to their pagan ancestors not only intellectual powers of the highest order, apparently inconsistent with the degraded conditions of savage life, but also an extraordinary capacity for political organization and for the practical application of the principles of every art beneficial to mankind; talents unconsciously formed and dormant through countless generations; a fact which may well excite the admiration of every scholar, and of which history in previous or subsequent times affords no example.

The Arabs, despite their apparent barbarism, occupy no contemptible place in the annals of antiquity. They conquered Egypt, and, under the dynasty of the Shepherd Kings, governed that country for many centuries. One of their race, enlisted as a private soldier, was, by a series of rapid promotions, raised to the throne of the Roman empire. Their cavalry fought with conspicuous distinction in the imperial armies. More than once the valor of Bedouin mercenaries determined the fate of the Persian monarchy. They constituted the greater part of the forces of Zenobia, Queen of Palmyra, in her desperate struggle with Aurelian. Under whatever banner they served, their courage and tenacity of purpose were never questioned. It must be admitted, however, that their fidelity was not beyond suspicion, and that, only too frequently, the name of Arab was a synonym of treachery.

The most remarkable peculiarity of Arabian life is its restless energy. The continuance of this condition from primeval times explains many of the distinctive traits so prominent in the character of the race. The well-known relation existing between commercial activity and civilized habits was powerless to change the existence of the nomadic Arab. His predatory instinct was always stronger than the attractions of sedentary comfort and opulence. Familiarity with Oriental luxury only increased his contempt for those who enjoyed it. His vagrant impulse carried him everywhere. He fearlessly penetrated the mysterious depths of the Libyan Desert. He served in the armies of Hindustan. He was enrolled in the Prætorian Guards, where his natural rapacity was gratified and stimulated by the donatives received for the ignominious sale of the imperial throne. For a considerable time before the advent of Mohammed, an increasing spirit of unrest had characterized the Arabs. With roving and predatory tastes, there could, of course, be no attachment to the soil,—a condition, indeed, regarded by the Bedouin as a badge of servitude. It required centuries to correct this prejudice; but no change of residence, no association with populations long civilized, or even the adoption of a new polity, the admonitions of a new religion, and the powerful attractions of affluence and ease, were ever able to eradicate the spirit of individual independence and tribal hostility which were the most prominent features of the Arabian character. These national peculiarities repeatedly threatened the existence of both the Eastern and Western Khalifates in the days of their greatest splendor. They intensified the bitterness which marked the struggles of rival princes for empire. They promoted and sustained the feuds of the nobility. They lurked under the tattered garments of the infuriated zealot. In the minds of the populace these feelings were scarcely ever concealed. They manifested themselves continually in personal quarrels, in the violence of mobs, in religious tumults, in insurrections, in the commission of frightful atrocities. They were potent factors in the destruction of mediæval Moslem civilization wherever established, and especially is this true of the Hispano-Arab domination, the most advanced, if not the most despotic, of them all. The temperament of the Arab, impetuous, fiery, vindictive, though admirably fitted for conquest, was deficient in those qualities of broad statesmanship and impartial discrimination vitally essential to the security and maintenance of government. Those who enjoyed the highest privileges of individual freedom were the mountaineers, who, in their inaccessible haunts, inured to privation, skilled in all manly exercises, and ignorant of luxury, clung with obstinate tenacity to their idols, and defied all attempts of the Prophet to convert or subdue them. Nor did Islam enlist her adherents in the purlieus of crowded cities. In Pagan as in Moslem Arabia, trade and religion were closely associated. The sympathies of the organized community were with the ancient religion, which contributed to its wealth, its employment, its personal profit, and its social distinction. The merchants and their numerous dependents looked coldly upon a revelation which menaced their revenues and their importance. The priesthood, recruited from the noblest families of the Peninsula, fostered this prejudice with an ardor born of instinctive hatred and professional pride. These two classes, therefore, contributed little to the propagation of the new doctrines; it was the wild hordes of the Desert that conquered the world.