dead. Alexander skirted the Caspian Sea, he went up into the mountains of western Turkestan, he came down by Herat (which he founded) and Cabul and the Khyber Pass into India. He fought a great battle on the Indus with an Indian king, Porus, and here the Macedonian troops met elephants for the first time and defeated them. Finally he built himself ships, sailed down to the mouth of the Indus, and marched back by the coast of Beluchistan, reaching Susa again in 324 B.C. after an absence of six years. He then prepared to consolidate and organize this vast empire he had won. He sought to win over his new subjects. He assumed the robes and tiara of a Persian monarch, and this roused the jealousy of his Macedonian commanders. He had much trouble with them. He arranged a number of marriages between these Macedonian officers and Persian and Babylonian women: the “Marriage of the East and West.” He never lived to effect the consolidation he had planned. A fever seized him after a drinking bout in Babylon and he died in 323 B.C.
Immediately this vast dominion fell to pieces. One of his generals, Seleucus, retained most of the old Persian empire from the Indus to Ephesus; another, Ptolemy, seized Egypt, and Antigonus secured Macedonia. The rest of the empire remained unstable, passing under the control of a succession of local adventurers. Barbarian raids began from the north and grew in scope and intensity. Until at last, as we shall tell, a new power, the power of the Roman republic, came out of the west to subjugate one fragment after another and weld them together into a new and more enduring empire.