EURIPIDES never appears on stage. The leader of the Heracleidae is lolaus, a decrepit but indomitable warrior who is rejuvenated in the course of battle and becomes the hero of the day. Finally, instead of having Eurystheus killed in battle (all other authorities do, as far as we know), Euripides makes lolaus take him prisoner and have him handed over to Alcmene, who puts him to death over the protests of the Athenians. This last feature may have a bearing on the date and occasion of the play. The Date No date for this play has been given by ancient authorities. The versification has technical qualities which find a parallel in three early-dated tragedies: Alcestis (438 B.C.), Medea (431 B.C.), and Hippolytus (428 B.C.). The dating and interpreta- tion may be further helped if we consider an event which took place between autumn of 430 and winter or early spring of 429 B.C. At that time Athens was at war with the Pelopon- nesian League. Five Peloponnesian envoys, on their way to the king of Persia, were treacherously seized by friends of the Athenians in Thrace, brought to Athens, and there "put to death on the day of their arrival, without trial and without permission to say some things they wished to say" (Thucydides ii. 67. 4; also mentioned by Herodotus vii. 137. 3). Since our play deals with the summary execution of an unarmed prisoner and was written at some date not far from 430, we can hardly ignore this event. Of course, The Heracleidae may have been written and produced earlier; but if we date it just after the execution of the envoys, we may understand why Euripides chose to end the play with the execution of Eurystheus instead of his death in battle. This abruptly changes the whole direction of the play and reverses our sympathies. From the beginning, we have been made to take the side of the innocent Heracleidae and their gallant protectors against the wicked king, who, not content with his abuse of the father, insists on hunting the children and their feeble guardians to death. It is as simple as that, sheer white against black. The outrageousness of the Argive 128