On the death of Pisistratus his sons Hippias, Hippar'chus, and Thes'salus succeeded to his power, and for some years trod in his steps and carried out his plans, only taking care to fill the most important offices with their friends, and keeping a standing force of foreign mercenaries to secure themselves from hostile factions and popular outbreaks. After a joint reign of fourteen years, a conspiracy was formed to free Attica from their rule, at the head of which were two young Athenians, Harmo'dius and Aristogi'ton, whose personal resentment had been provoked by an atrocious insult to the family of the former. One of the brothers was killed, but the two young Athenians also lost their lives in the struggle. Hippias, the elder of the rulers, now became a cruel tyrant, and soon alienated the affections of the people, who obtained the aid of the Spartans, and the family of the Pisistratids was driven from Athens, never to regain its former ascendancy (510 B.C.). Hippias fled to the court of Artapher'nes, governor of Lydia, then a part of the Persian dominion of Dari'us, where his intrigues largely contributed to the opening of a war between Persia and Greece. The names of Harmodius and Aristogiton have been immortalized by what some writers term "the ignorant or prejudiced gratitude of the Athenians." DR. ANTHON considers them cowardly conspirators, entitled to no heroic honors. But, as he says, statues were erected to them at the public expense; and when an orator wished to suggest the idea of the highest merit and of the noblest services to the cause of liberty, he never failed to remind his hearers of Harmodius and Aristogiton. Their names never ceased to be repeated with affectionate admiration in the convivial songs of Athens, which assigned them a place in the islands of the "blessed," by the side of Achilles and Tydi'des. From one of the most famous and popular of these songs, by CALLIS'TRATUS, we give the following verses: Harmodius, hail! Though 'reft of breath, Thou ne'er shalt feel the stroke of death; The heroes' happy isles shall be The bright abode allotted thee. * * * * * While freedom's name is understood You shall delight the wise and good; You dared to set your country free, And gave her laws equality. * * * * * IV. THE BIRTH OF DEMOCRACY.