REVOLT OF THE BACTRIANS AND PARTHIANS 201 The line of Bactrian kings initiated by Diodotos was destined to a briefer and stormier existence than that enjoyed by the dynasty of the Arsakids. Diodotos himself wore his newly won crown for a brief space only, and after a few years was succeeded (dr. 245 B. c.) by his son of the same name, who entered into an alli- ance with the Parthian king. Diodotos II was followed (dr. 230 B. c.) by Euthy de- mos, a native of Magnesia, who seems to have belonged to a different family, and to have gained the crown by successful rebellion. This monarch became involved in a long-contested war with Antiochos the Great of Syria (223-187 B.C.), which was terminated (cir. 208 B. c.) by a treaty recognizing the independence of the Bactrian kingdom. Shortly afterward Antiochos crossed the Hindu Kush, and compelled an Indian king named Subhagasena, who probably ruled in the Kabul valley, to surrender a considerable number of elephants and large treasure. Leaving Androsthenes of Cyzicus to collect this war indemnity, Antiochos in person led his main force homeward by the Kandahar route through Arachosia and Drangiana to Karmania. Demetrios, son of Euthydemos and son-in-law of Antiochos, who had given him a daughter in marriage when the independence of Bactria was recognized, repeated his father-in-law's exploits with still greater success, and conquered a considerable portion of North- ern India, presumably including Kabul, the Panjab, and Sind (dr. 190 B. c.). The distant Indian wars of Demetrios necessarily
