Before Aeschylus, Attic tragedy had been essentially lyrical. It arose from the dithyrambic chorus that was sung at the festivals of Dionysus. Thespis had introduced the first actor, who, in the pauses of the choral song, related in monologue the adventures of the god or engaged in dialogue with the leader of the chorus. To Aeschylus is due the invention of the second actor. This essentially changed the character of the performance. The dialogue could now be carried on by the two actors, who were thus able to enact a complete story. The functions of the chorus became less important, and the lyrical element was subordinated to the action. (The word "drama" signifies action.) The number of actors was subsequently increased to three, and Aeschylus in his later plays used this number. This restriction imposed upon the Greek playwright does not mean that he was limited to two or three characters in his play, but that only two, or at the most three, of these might take part in the action at once. The same actor might assume different parts. The introduction of the second actor was so capital an innovation that it rightly entitles Aeschylus to be regarded as the creator of the drama, for in his hands tragedy first became essentially dramatic. This is his great distinction, but his powerful genius wrought other changes. He perfected, if he did not discover, the practice of introducing three plays upon a connected theme (technically named a trilogy), with an after-piece of lighter character. He invented the tragic dress and buskin, and perfected the tragic mask. He improved the tragic dance, and by his use of scenic decoration and stage machinery, secured effects that were unknown before him. His chief claim to superior excellence, however, lies after all in his poetry. Splendid in diction, vivid in the portraiture of character, and powerful in the expression of passion, he is regarded by many competent critics as the greatest tragic poet of all time.

The Greek lexicographer, Suidas, reports that Aeschylus wrote ninety plays. The titles of seventy-two of these have been handed down in an ancient register. He brought out the first of these at the age of twenty-five, and as he died at the age of sixty-nine, he wrote on an average two plays each year throughout his lifetime. Such fertility would be incredible, were not similar facts authentically recorded of the older tragic poets of Greece. The Greek drama, moreover, made unusual demands on the creative powers of the poet. It was lyrical, and the lyrics were accompanied by the dance. All these elements--poetry, song, and dance--the poet contributed; and we gain a new sense of the force of the word "poet" (it means "creator"), when we contemplate his triple function. Moreover, he often "staged" the play himself, and sometimes he acted in it. Aeschylus was singularly successful in an age that produced many great poets. He took the first prize at least thirteen times; and as he brought out four plays at each contest, more than half his plays were adjudged by his contemporaries to be of the highest quality. After the poet's death, plays which he had written, but which had not been acted in his lifetime, were brought out by his sons and a nephew. It is on record that his son Euphorion took the first prize four times with plays of his father; so the poet's art lived after him and suffered no eclipse.

Only seven complete plays of Aeschylus are still extant. The best present source of the text of these is a manuscript preserved in the Laurentian Library, at Florence in Italy, which was written in the tenth or eleventh century after Christ. The number of plays still extant is small, but fortunately, among them is the only complete Greek trilogy that we possess, and luckily also the other four serve to mark successive stages in the poet's artistic development. The trilogy of the 'Oresteia' is certainly his masterpiece; in some of the other plays he is clearly seen to be still bound by the limitations which hampered the earlier writers of Greek tragedy. In the following analysis the seven plays will be presented in their probable chronological order.

The Greeks signally defeated Xerxes in the great sea fight in the bay of Salamis, B.C. 480. The poet made this victory the theme of his 'Persians.' This is the only historical Greek tragedy which we now possess: the subjects of all the rest are drawn from mythology. But Aeschylus had a model for his historical play in the 'Phoenician Women' of his predecessor Phrynichus, which dealt with the same theme. Aeschylus, indeed, is said to have imitated it closely in the 'Persians.' Plagiarism was thought to be a venial fault by the ancients, just as in the Homeric times piracy was not considered a disgrace. The scene of the play is not Athens, as one might expect, but Susa. It opens without set prologue. The Chorus consists of Persian elders, to whom the government of the country has been committed in the absence of the King. These venerable men gather in front of the royal palace, and their leader opens the play with expressions of apprehension: no news has come from the host absent in Greece. The Chorus at first express full confidence in the resistless might of the great army; but remembering that the gods are jealous of vast power and success in men, yield to gloomy forebodings. These grow stronger when Atossa, the aged mother of Xerxes, appears from the palace and relates the evil dreams which she has had on the previous night, and the omen that followed. The Chorus beseech her to make prayer to the gods, to offer libations to the dead, and especially to invoke the spirit of Darius to avert the evil which threatens his ancient kingdom. Too late! A messenger arrives and announces that all is lost. By one fell stroke the might of Persia has been laid low at Salamis. At Atossa's request, the messenger, interrupted at first by the lamentations of the Chorus, recounts what has befallen. His description of the battle in the straits is a passage of signal power, and is justly celebrated. The Queen retires, and the Chorus sing a song full of gloomy reflections. The Queen reappears, and the ghost of Darius is invoked from the lower world. He hears from Atossa what has happened, sees in this the fulfillment of certain ancient prophecies, foretells disaster still to come, and warns the Chorus against further attempts upon Greece. As he departs to the underworld, the Chorus sing in praise of the wisdom of his reign. Atossa has withdrawn. Xerxes now appears with attendants, laments with the Chorus the disaster that has overtaken him, and finally enters the palace.

The economy of the play is simple: only two actors are required. The first played the parts of Atossa and Xerxes, the second that of the messenger and the ghost of Darius. The play well illustrates the conditions under which Aeschylus at this period wrote. The Chorus was still of first importance; the ratio of the choral parts in the play to the dialogue is about one to two.

The exact date of the 'Suppliants' cannot be determined; but the simplicity of its plot, the lack of a prologue, the paucity of its characters, and the prominence of the Chorus, show that it is an early play. The scene is Argos. The Chorus consists of the daughters of Danaüs, and there are only three characters,--Danaüs, a Herald, and Pelasgus King of Argos.

Danaüs and Aegyptus, brothers, and descendants of Io and Epaphus, had settled near Canopus at the mouth of the Nile. Aegyptus sought to unite his fifty sons in marriage with the fifty daughters of the brother. The daughters fled with their father to Argos. Here his play opens. The Chorus appeal for protection to the country, once the home of Io, and to its gods and heroes. Pelasgus, with the consent of the Argive people, grants them refuge, and at the end of the play repels the attempt to seize them made by the Herald of the sons of Aegyptus.

A part of one of the choruses is of singular beauty, and it is doubtless to them that the preservation of the play is due. The play hardly seems to be a tragedy, for it ends without bloodshed. Further, it lacks dramatic interest, for the action almost stands still. It is a cantata rather than a tragedy. Both considerations, however, are sufficiently explained by the fact that this was the first play of a trilogy. The remaining plays must have furnished, in the death of forty-nine of the sons of Aegyptus, both action and tragedy in sufficient measure to satisfy the most exacting demands.

The 'Seven Against Thebes' deals with the gloomy myth of the house of Laïus. The tetralogy to which it belonged consisted of the 'Laïus,' 'Oedipus,' 'Seven Against Thebes,' and 'Sphinx.' The themes of Greek tragedy were drawn from the national mythology, but the myths were treated with a free hand. In his portrayal of the fortunes of this doomed race, Aeschylus departed in important particulars, with gain in dramatic effect, from the story as it is read in Homer.

Oedipus had pronounced an awful curse upon his sons, Eteocles and Polynices, for their unfilial neglect,--"they should one day divide their land by steel." They thereupon agreed to reign in turn, each for a year; but Eteocles, the elder, refused at the end of the first year to give up the throne. Polynices appealed to Adrastus King of Argos for help, and seven chiefs appeared before the walls of Thebes to enforce his claim, and beleaguered the town. Here the play opens, with an appeal addressed by Eteocles to the citizens of Thebes to prove themselves stout defenders of their State in its hour of peril. A messenger enters, and describes the sacrifice and oath of the seven chiefs. The Chorus of Theban maidens enter in confusion and sing the first ode. The hostile army is hurrying from its camp against the town; the Chorus hear their shouts and the rattling din of their arms, and are overcome by terror. Eteocles reproves them for their fears, and bids them sing a paean that shall hearten the people. The messenger, in a noteworthy scene, describes the appearance of each hostile chief. The seventh and last is Polynices. Eteocles, although conscious of his father's curse, nevertheless declares with gloomy resoluteness that he will meet his brother in single combat, and, resisting the entreaties of the Chorus, goes forth to his doom. The attack on the town is repelled, but the brothers fall, each by the other's hand. Thus is the curse fulfilled. Presently their bodies are wheeled in. Their sisters, Antigone and Ismene, follow and sing a lament over the dead. A herald announces that the Theban Senate forbid the burial of Polynices; his body shall be cast forth as prey of dogs. Antigone declares her resolution to brave their mandate, and perform the last sad rites for her brother.