It was the fortune of Persia to be delivered from the Afghan yoke at a time when, under a feeble and corrupt ruler, the national life had been almost crushed out by foreign tyranny. This deliverance was wrought by a man who raised himself from the lowest condition to the head of the kingdom which he restored. Besides this achievement for Persia, Nadir Shah performed deeds of conquest which placed his name among those who have won lasting celebrity by the subjugation of empires. The Afghans had in 1722 captured Ispahan, the Persian capital, then an important metropolis with six hundred thousand inhabitants. They sacked the city and killed all of the royal family except Hasan, the weak ruler, his son Tamasp, and two grandchildren. From this blow the once magnificent capital of Persia has never recovered. Tamasp became shah in 1727. How the brief rule of the conquering Afghans was terminated by Nadir Shah, and how he pursued his own bloody path of conquest, Sir John Malcolm, the historian of Persia, relates in a most graphic and comprehensive manner. Nadir Shah was born in the province of Khorasan. Persian historians pass over the early occurrences of his life, and the first event that these notice is the birth of his eldest son, Reza Kuli, which occurred when he was thirty-one years of age. He had before that experienced great vicissitudes of fortune, and had given proofs both of valor and talent. When only seventeen he was taken prisoner by the Usbegs, who made annual incursions into Khorasan; but he effected his escape after a captivity of four years. His occupation from that period till he entered into the service of Shah Tamasp can only merit notice as it is calculated to show that the character of this extraordinary man was always the same. He was at one time in the service of a petty chief of his native province, whom he murdered, and whose daughter he carried off and married. After this, he obtained a precarious subsistence by heading a band of robbers; from which occupation he passed, by an easy transition in such troubled times, into the employment of the Afghan Governor of Khorasan, by whom he was at first raised to rank and command, as a reward for his valor in actions with the Usbegs, and afterward degraded and punished with the bastinado on account of his insolent and turbulent conduct.