Belgrade to the Danube mouth, a line which it was destined to preserve for nearly two hundred years, till the great rebellion of Bulgaria against Isaac Angelus in the year 1086. Having justly earned his grim title of “the Slayer of the Bulgarians” by his long series of victories in Europe, Basil turned in his old age to continue the work of John Zimisces on the Eastern frontier. There the Moslem states were still weak and divided; though a new power, the Fatimite dynasty in Egypt, had come to the front, and acquired an ascendency over its neighbours. Basil’s last campaigns, in 1021-2, were directed against the princes of Armenia, and the Iberians and Abasgians who dwelt beyond them to the north. His arms were entirely successful, and he added many Armenian districts to his Eastern provinces; but it may be questioned whether these conquests were beneficial to the empire. A strong Armenian kingdom was a useful neighbour to the Byzantine realm; being a Christian state it was usually friendly to the empire, and acted as a barrier against Moslem attacks from Persia. Basil broke up the Armenian power, but did not annex the whole country, or establish in it any adequate provision against the ultimate danger of attacks from the East by the Mahometan powers. Basil died in 1025 at the age of sixty-eight, just as he was preparing to send forth an expedition to rescue Sicily from the hands of the Saracens. He had won more provinces for the empire than any general since the days of the great Belisarius, and at his death the Byzantine borders had reached the furthest extension which they ever knew. His successors were to be unworthy of his throne, and were destined to lose provinces with as constant regularity as he himself had shown in gaining them. There was to be no one after him who could boast that he had fought thirty campaigns in the open field with harness on his back, and had never turned aside from any enterprise that he had ever taken in hand.