TRAJAN 49 though brilliant failure. In the retreat from Ctesiphon (117), the old emper- ' or tasted for almost the first time the bitterness of defeat in the field. He at- tacked the desert city of Hatra, westward of the Tigris, whose importance is still attested by grand ruins. The want of water made it impossible to maintain a large force near the city, and the brave Arabs routed the Roman cavalry. Tra- jan, who narrowly escaped being killed, was forced to withdraw. A more alarming difficulty lay before him. Taking advantage of the absence of the emperor in the far East, and possibly by an understanding with the leaders of the rising in Armenia and the annexed portions of Parthia, the Jews all over the East had taken up arms at the same moment, and at a given signal. The massacres they committed were portentous. In Cyprus 240,900 men are said to have been put to death, and at Gyrene 220,000. At Alexandria, on the other hand, many Jews were killed. The Romans punished massacre by massacre, and the complete suppression of the insurrection was long delayed, but the Jews made no great stand against disciplined troops. Trajan still thought of return- ing to Mesopotamia, and of avenging his defeat at Hatra, but he was stricken with sickness and compelled to take ship for Italy. His illness increasing, he landed in Cilicia, and died at Selinus in that country about the end of July, 117. Trajan, who had no children, had continually delayed to settle the succession to the throne, though Pliny, in the " Panegyric " had pointedly drawn his atten- tion to the matter, and it must have caused the Senate much anxiety. Whether Hadrian, the cousin of Trajan, was actually adopted by him or not, is impossible to determine ; certainly Hadrian had not been advanced to any great honors by Trajan. Even his military service had not been distinguished. Plotina asserted the adoption, and.it was readily and most fortunately accepted, if not believed, as a fact. The Senate had decreed to Trajan as many triumphs as he chose to celebrate. For the first time a dead general triumphed. When Trajan was deified, he ap- propriately retained, alone among the emperors, a title he had won for himself in the field, that of " Parthicus." He was a patient organizer of victory rather than a strategic genius. He laboriously perfected the military machine, which when once set in motion went on to victory. Much of the work he did was great and enduring, but the last year of his life forbade the Romans to attribute to him tivsti. felicitas which they regarded as an inborn quality of the highest gen- erals. Each succeeding emperor was saluted with the wish that he might be "better than Trajan and more fortunate than Augustus." Yet the breach made in Trajan's felicitas by the failure in the East was no greater than that made in the felicitas of Augustus by his retirement from the right bank of the Rhine.