Dionysius I.; Syracuse a free democratic state: from 466-405. Reestablishment of republican forms of government in Syracuse and the other Grecian cities; accompanied, however, with many commotions and civil wars, proceeding from the expulsion of the new citizens and the restoration of the ancient inhabitants to their property.--Increasing power and prosperity of Syracuse, who is now at the head of the confederate Grecian cities in the island, and soon endeavours to convert her precedence into supremacy. The new democratic constitution quickly suffers from the diseases incident to that form of government; a vain attempt is made to apply a remedy by the introduction of the petalismus, B. C. 454; in the mean time the Siculi, aboriginal inhabitants of Sicily, unite in closer league under their leader Ducetius; attempting to expel the Greeks, 451, they engage the Syracusans in reiterated wars; the arms of Syracuse are successful, her authority is confirmed by the subjection of the ambitious Agrigentum, 446, and by her naval victory over the Etruscans. First but unsuccessful attempt of the Athenians to interpose in the domestic affairs of Sicily, by siding with Leontini against Syracuse, 427; eleven years afterward occurs the great expedition against Syracuse, 415-413, caused by the disputes between Segesta and Selinus; the expedition ends in the total rout of the Athenian fleet and army, (see below,) and the power of Syracuse reaches its zenith. A constitutional reform takes place, 412, brought about by Diocles, whose laws were subsequently adopted by several other of the Sicilian cities. The magistrates were chosen by lot. The rest of the laws, which appear to have had reference to the criminal code, were the production of a committee over which Diocles presided; these enactments were so beneficial to Syracuse, that the author of them was honoured with a temple after his death. Yet as early as 410, a renewal of the differences between Segesta and Selinus afforded a pretext for war with Carthage, from whom the Segestani had besought assistance; by this war the whole state of affairs in Sicily was subverted. The rapid strides made by the Carthaginians, who, under the command of Hannibal the son of Gisgo, took, 409, Selinus and Himera, and even Agrigentum, 406, engendered domestic factions and commotions within Syracuse; and amid those disorders the crafty Dionysius succeeded first in obtaining the office of general, and then, after supplanting his colleagues, the sovereign power of Syracuse, 405. 4. From Dionysius I. to the Roman occupation, 405-212. Dionysius I. 405-368. Ominous commencement of his reign, by a defeat at Gela and the mutiny of his troops.--A plague wasting the Carthaginian army, he is enabled to patch up a peace, B. C. 405, by which it is agreed, that Carthage, besides her territory in the island, shall