One of the earliest of his plays is the _Suppliants_, little read owing to the uncertainty of the text and the meagreness of the dramatic interest. The plot is simple enough. Danaus, sprung from Io of Argos, flees from Egypt with his fifty daughters who avoid wedlock with the fifty sons of Aegyptus. He sails to Argos and lays suppliant boughs on the altars of the gods, imploring protection. The King of Argos after consultation with his people decides to admit the fugitives and to secure them from Aegyptus' violence. A herald from the latter threatens to take the Danaids back with him, but the King intervenes and saves them. There is little in this play but long choral odes; yet one or two Aeschylean features are evident. The King dreads offending the god of suppliants "lest he should make him to haunt his house, a dread visitor who quits not sinners even in the world to come." The Egyptian herald reverences no gods of Greece "who reared him not nor brought him to old age". The Chorus declare that "what is fated will come to pass, for Zeus' mighty boundless will cannot be thwarted". Here we have the three leading ideas in the system of Aeschylus--the doctrine of the inherited curse, of human pride and impiety, and the might of Destiny. The _Persians_ is unique as being the only surviving historical play in Greek literature. It is a poem rather than a drama, as there is little truly dramatic action. The piece is a succession of very vivid sketches of the incidents in the great struggle which freed Europe from the threat of Eastern despotism. A Chorus of Persian elders is waiting for news of the advance of the great array which Xerxes led against Greece in 480. They tell how Persia extended her sway over Asia. Yet they are uneasy, for "what mortal can avoid the crafty deception of Heaven? In seeming kindness it entices men into a trap whence they cannot escape." The Queen-mother Atossa enters, resplendent with jewels; she too is anxious, for in a dream she had seen Xerxes yoke two women together who were at feud, one clad in Persian garb, the other in Greek. The former was obedient to the yoke, but the latter tore the car to pieces and broke the curb. The Chorus advises her to propitiate the gods with sacrifice, and to pray to Darius her dead husband to send his son prosperity. At that moment a herald enters with the news of the Greek victory at Salamis. Xerxes, beguiled by some fiend or evil spirit, drew up his fleet at night to intercept the Greeks, supposed to be preparing for flight. But at early dawn they sailed out to attack, singing mightily "Ye sons of Greece, onward! Free your country, your children and wives, the shrines of your fathers' gods, and your ancestral tombs. Now must ye fight for all."