Tághist is remarkable as the place of prayer founded by the man who introduced Islám into Central Negroland,[9] and thus gave the first impulse to that continual struggle which, always extending further and further, seems destined to overpower the nations at the very equator, if Christianity does not presently step in to dispute the ground with it. This man was the celebrated Mohammed ben ʿAbd el Kerím ben Maghíli, a native of Búda, in Tawát,[10] and a contemporary and intimate friend of the Sheikh eʾ Soyúti, that living encyclopædia and key-stone, if I may be allowed the expression, of Mohammedan learning. Living in the time when the great Sónghay empire began to decline from that pitch of power which it had reached under the energetic sway of Sónni ʿAli and Mohammed el Háj Áskia, and stung by the injustice of Áskia Ismʿaíl, who refused to punish the murderers of his son, he turned his eyes on the country where successful resistance had first been made against the all-absorbing power of the Asáki, and which, fresh and youthful as it was, promised a new splendour, if enlightened by the influence of a purer religion. Instigated by such motives, partly merely personal, partly of a more elevated character, Mohammed ben ʿAbd el Kerím turned his steps towards Kátsena, where we shall find him again; but on his way thither he founded in this spot a place of prayer, to remain a monument to the traveller of the path which the religion of the One God took from the far east to the country of the blacks. The “msíd,” or “mesálla,” at present is only marked by stones laid out in a regular way, and enclosing a space from sixty to seventy feet long, and fifteen broad, with a small mehhráb, which is adorned (accidentally or intentionally, I cannot say) by a young talha-tree. This is the venerated and far-famed “Makám eʾ Sheikh ben ʿAbd el Kerím,” where the traveller coming from the north never omits to say his prayers; others call it Msíd Sídi Baghdádi, the name Baghdádi being often given by the blacks to the Sheikh, who had long resided in the east. At length we descended from the rugged ground of Tághist into the commencement of the celebrated valley of Aúderas, the fame of which penetrated to Europe many years ago. Here we encamped, wet as we were, on the slope of the rocky ground, in order to guard against the humidity of the valley. Opposite to us, towards the south, on the top of a hill, lay the little village Aërwen wan Tídrak. Another village, called Ífarghén, is situated higher up the valley, on the road from Aúderas to Damerghú. On our return I saw in this valley a barbarous mode of tillage, three slaves being yoked to a sort of plough, and driven like oxen by their master. This is probably the most southern place in Central Africa where the plough is used; for all over Sudán the hoe or fertaña is the only instrument used for preparing the ground. [Illustration]