It was the ill-treatment by the Seljuks of the Christian pilgrims to Palestine which aroused Christian Europe and led to the First Crusade. The feudal system adopted by the Seljuks caused endless dissension among their petty sovereigns, called "Atabegs", all of whom were nominally vassals of the Caliph at Bagdad. Thus it came about that Islamism, divided against itself, offered but a poor resistance to the advance of the Christians. The Crusaders had little difficulty in making their way to Palestine. They captured Jerusalem, and established the Latin kingdom there.

By the middle of the twelfth century Mohammedan power had shrunk to smaller dimensions. Not only did the Franks hold Palestine and all the important posts on the Syrian coast, but, by the capture of Lesser Armenia, Antioch, and Edessa, they had driven a wedge into Syria, and extended their conquests even beyond the Euphrates.

At length there came a pause in the decline of Islam. Zengi, a powerful Seljuk Atabeg, in 1144 captured Edessa, the outpost of Christendom, and the Second Crusade, led by the Emperor Conrad of Germany and by King Louis VII of France, failed to effect the recapture of the fortress. Nureddin, the far-sighted son and successor of Zengi, and later on Saladin, a Kurd, trained at his court, discovered how to restore the fallen might of Islam and expel the Franks from Asia. A necessary preliminary step was to put an end to the dissensions of the Atabeg rulers. Nureddin did this effectually by himself annexing their dominions. His next step was to gain possession of Egypt, and thereby isolate the Latin Kingdom. Genoa, Pisa, and Venice, the three Italian republics who between them had command of the sea, were too selfish and too intent upon their commercial interests to interfere with the designs of the Saracens. The Latin king Amalric had for some years sought to gain a foothold in Egypt. In November, 1168, he led the Christian army as far as the Nile, and was about to seize Fostat, the old unfortified Arab metropolis of Egypt. The inhabitants, however, preferred to set fire to the city rather than that it should fall into the hands of the Christians. To this very day many traces may be seen in the neighbourhood of Cairo of this conflagration. Nureddin's army, in which Saladin held a subordinate command, by a timely arrival on the scene forced the Franks to retreat, and the Saracens were acclaimed as deliverers.

The nominal ruler of Egypt at that time was El-Adid, the Fatimite Caliph, and he made Saladin his Vizier, little thinking that that modest officer would soon supplant him. So efficiently did Saladin administer the country that in a few months it had regained its prosperity, despite the five years' devastating war which had preceded.

At this juncture the traveller Rabbi Benjamin came to Egypt. Some three years earlier he had left his native place—Tudela, on the Ebro in the north of Spain. After passing through the prosperous towns which lie on the Gulf of Lyons, he visited Rome and South Italy. From Otranto he crossed over to Corfu, traversed Greece, and then came to Constantinople, of which he gives an interesting account. Very telling, for example, are the words: "They hire from amongst all nations warriors called Barbarians to fight with the Sultan of the Seljuks; for the natives are not warlike, but are as women who have no strength to fight." After visiting the Islands of the Aegean, as well as Rhodes and Cyprus, he passed on to Antioch, and followed the well-known southern route skirting the Mediterranean, visiting the important cities along the coast, all of which were then in the hands of the Franks.

Having regard to the strained relations between the Christians and Saracens, and to the fights and forays of the Latin knights, we can understand that Benjamin had to follow a very circuitous way to enable him to visit all the places of note in Palestine. From Damascus, which was then the capital of Nureddin's empire, he travelled along with safety until he reached Bagdad, the city of the Caliph, of whom he has much to tell.

It is unlikely that he went far into Persia, which at that time was in a chaotic state, and where the Jews were much oppressed. From Basra, at the mouth of the Tigris, he probably visited the island of Kish in the Persian Gulf, which in the Middle Ages was a great emporium of commerce, and thence proceeded to Egypt by way of Aden and Assuan.

Benjamin gives us a vivid sketch of the Egypt of his day. Peace and plenty seemed to prevail in the country. This happy state of things was entirely due to the wise measures taken by Saladin, who, however, kept himself so studiously in the background, that not even his name is mentioned in the Itinerary. The deposition of the Fatimite Caliph on Friday, September 10, 1171, and his subsequent death, caused little stir. Saladin continued to govern Egypt as Nureddin's lieutenant. In due course he made himself master of Barca and Tripoli; then he conquered Arabia Felix and the Soudan, and after Nureddin's death he had no difficulty in annexing his old master's dominions. The Christian nations viewed his rapidly growing power with natural alarm.

About that time news had reached Europe that a powerful Christian king named Prester John, who reigned over a people coming from Central Asia, had invaded Western Asia and inflicted a crushing defeat upon a Moslem army. Pope Alexander III conceived the hope that a useful ally could be found in this priest-king, who would support and uphold the Christian dominion in Asia. He accordingly dispatched his physician Philip on a mission to this mysterious potentate to secure his help against the Mohammedans. The envoy never returned.