At no great distance eastward from Basra there were extensive flats, traversed by ditches, in which great numbers of black slaves, mostly from the east coast of Africa, the land of the Zenj,[[52]] were employed by rich entrepreneurs of the city in digging away the nitrous surface soil, so as to lay bare the fruitful ground underneath, and at the same time to obtain the saltpetre that occurred in the upper stratum. An industry of such magnitude in the open country is seldom met with in the East. The work in such a case is very hard, and the supervision must be strict. The feeling of affection which in the East binds the slave very closely to the family in which he lives and has grown up, is here altogether wanting. On the other hand, among such masses of slaves working together there easily springs up a certain community of feeling, a common sense of embitterment against their masters, and, under favourable circumstances, a consciousness of their own strength; thus are combined the conditions of a powerful insurrection. So it was in the servile wars of the last century of the Roman republic, and so it was here. Alí recognised the strength latent in those black slaves. The fact that he was able to set this strength in motion, and that he developed it into a terrible power which required long time and the very greatest exertions to overcome it, conclusively shows that he was a man of genius. The “leader of the Zenj,” the “Alid,” or the “false Alid,” plays a very great part in the annals of his time—such a part, indeed, that it is easy to understand why our main informant, Tabarí, should by preference call him “the abominable one,” “the wicked one,” or “the traitor.”

Once before in Babylonia a talented and unscrupulous Arab had utilised a time of internal confusion to raise a sovereignty on religious pretexts by the aid of a despised class; the cunning Mokhtár had appealed to the Persian or half-Persian population of the great cities, particularly Cufa, upon whom the dominant Arabs in those early days of Islam looked down with supreme contempt (685-687 A.D.). But our hero went much deeper, and maintained himself much longer, than Mokhtár.

Before openly declaring himself, Alí had sought out from among the lowest strata of the population, and the freedmen in particular, suitable tools for the execution of his plans. In the beginning of September 869 he betook himself, at first under the guise of business agent for a princely family, to the saltpetre district, and began at once to rouse the slaves. Saturday, 10th September 869, is reckoned as the date at which he openly declared himself. He represented to the negro slaves how badly they were being treated, and promised them, if they joined him, freedom, wealth, and—slaves. In other words, he did not preach universal equality and well-being, but reserved the supremacy for the particular class to which he addressed himself. All this, of course, was clothed in religious forms. He proclaimed the restoration of true legality. None but those who followed himself were believers, or entitled to claim the heavenly and earthly rights of the true Moslem. Alí thus appealed at once to the nobler and to the more vulgar feelings of the rudest masses, and with complete success. We may accept the statement that he gave himself out for inspired; at any rate to the blacks he seemed to be a messenger of God. That he himself believed in his own heavenly vocation is hardly to be assumed; all that we know of him bespeaks a very cool understanding. We learn much more, it is true, about his warlike deeds than about his true character; religious fancy has often great influence even upon coolly calculating natures, and in the East especially it is very difficult to draw the line between self-deception and imposition upon others. That Alí was sincere when he betook himself to astrology in important crises need not be doubted, for this superstition at that time held sway over even the clearest heads with hardly an exception.

Since the rebel leader claimed, as we have seen, to be descended from Alí, Mohammed’s son-in-law, we should naturally have expected to find him, like other Alids, appealing to the divine right of his house, and coming forward as founder of a sect of Shíites. But instead of this he declared himself for the doctrine of those most decided enemies of Shíite legitimism, the Kharijites or Zealots, who held the first two Caliphs alone to have been lawful, and rejected Othmán and Alí alike, because they had adopted worldly views; who demanded that none but “the best man” should wield the sovereignty, “though he were an Abyssinian slave;”[[53]] who, moreover, in their ethical rigorism regarded as idolatry every grave sin, and most of all, of course, opposition to their own doctrine as the true Islam; and who accordingly regarded all their Moslem enemies, with their wives and families, as lawfully given over to the sword or to slavery. One of the most prominent officers of the negro leader preached in this sense in Basra when it was taken; the same idea lent fury to his black troops; and even his banner bore the text of the Koran[[54]] which had been one of the chief watchwords of the old death-defying Kharijites. It was certainly also with a purpose that he called himself upon this banner simply, “Alí, son of Mohammed,” without allusion to his high descent. With this it agrees that an original document of the period shortly after his death designates him as a Kharijite. His choice of party was in the highest degree appropriate. The slaves were easily gained by a strong personality who could condescend to them, but they were not to be inspired with enthusiasm for a mystical hereditary claim. But that they themselves were the true believers and the lawful destroyers or masters of all others, the blacks were ready to believe; and they acted accordingly. Perhaps their leader took this also into account, that in Basra (on the lower classes of which place he seems at first to have reckoned), the Shíite doctrine was at that time very unpopular, quite the opposite of what it was in Cufa, the old rival of Basra. From what has been said it will be abundantly clear why Karmat, one of the founders of the Karmatians, an extreme Shíite sect which was destined soon after this to fill the whole Mohammedan world with fear and dismay, should, on religious grounds, have decided not to connect himself with the negro leader, however useful this association might otherwise have been to him.

The nature of the ground was highly favourable to a rising of the kind. Indeed, some forty years before this, in the marshes between Wásit and Basra, the Gypsies (Zutt) settled there had, augmented by offscourings of humanity brought together from all quarters, lived the life, first of robbers, and afterwards of declared rebels, and were only after the greatest exertion compelled to capitulate; yet these were people who neither in courage nor in numbers could be compared to the East Africans, and that, too, at a time when the caliphate was still in reality a world-empire.[[55]]

Of the beginning of the negro insurrection we have exceptionally minute details from the accounts of eye-witnesses. We learn how one band of slaves after another—a troop of fifty, a troop of five hundred, and so forth—obeyed the call of the new Messiah. We even know the names of those slaves who incited their companions to join the rebel leader. As was natural, their wrath was directed, not merely against their masters, who were mostly absent, but even more against the taskmasters, all of them, we may suppose, themselves slaves or at most freedmen. Yet the leader spared their lives and let them go, after they had first been soundly beaten by their former subordinates. The owners more than once begged him to let them have their slaves back again, promising him amnesty and five gold pieces per head; but he refused all offers; and when the blacks began to show uneasiness about such negotiations, he solemnly pledged himself never to betray them, and to further their best interests. This oath he kept.

The most numerous class of these negroes—the Zenj, properly so called—were almost all of them ignorant of Arabic; for during their common labours in the open air they had had no occasion to learn this language, though the Oriental black, for the most part, very readily drops his mother-tongue to take up that of his master. With these, accordingly, Alí had to use an interpreter. But others of the negroes—those from more northern countries (Nubia and the like)—already spoke Arabic. With the saltpetre workers were undoubtedly associated many fugitive slaves from the villages and towns, and probably all sorts of fair-skinned people as well, but apparently few representatives of the urban proletariat. A valuable accession to their strength was contributed by the black soldiers who, especially after defeats, went over to the Zenj from the government troops. So, for example, at the very outset a division of the army fell upon the almost unarmed rebels, but was beaten; whereupon three hundred blacks at once went over to the latter.

Unfortunately we possess practically no particulars as to the internal arrangements of this singular State, composed of fanatical warriors or robbers who once had been, for the most part, negro slaves. With regard to their great achievements in war, it is to be remembered that they were excellently led; that they fought upon a favourable and familiar soil, full of marshes and canals, of which they thoroughly knew how to take advantage, while the enemy was equipped for an altogether different kind of fighting; and, finally, that the East African blacks, as a rule, are brave. It was not without reason that many negroes were at that time enrolled in the troops of the empire; even at present the black regiments of the Khedive are much more serviceable than those raised in Egypt. We know, too, that the negro leader maintained strict discipline.

It would seem that he had exerted himself to win over the villagers also, who for the most part, if not altogether, were dependent on aristocratic or wealthy masters. Perhaps he was more successful in this than our authorities say. He sometimes gave up hostile villages to plunder; but the provisioning of his large masses of men was probably, to a considerable extent, made easier for him through the connivance of the peasants. And when, at the very outset, he allowed a band of Mecca pilgrims to pass unharmed, this action was not only sagacious, but also in accordance with the doctrine which he professed.

Hardly had the slaves’ revolt declared itself when troops upon troops were sent for its suppression; but within a few weeks the Zenj had gained several victories. The imperial armies were, it may be presumed, not large enough, and were badly led; the enemy, as was natural, was underrated. Here, at the outset, we find the Zenj’s peculiar mode of fighting,—namely, out of concealed side-channels, heavily overgrown with reeds, to fall suddenly upon the rear of the enemy’s troops as they rowed along. In this war it is the regular thing that a number of the vanquished are drowned. The leader of the Zenj was always well served by his scouts.