The words contain an allusion to the dispute between Athens and Mitylene in the time of Peisistratos, as to the possession of Sigeion. Athena asserts that it had been given to her by the whole body of Achæans at the time when they had taken Troïa. Comp. Herod. vv. 94, 95. It probably entered into the political purposes of the play to excite the Athenians to a war in this direction, so as to draw them off from the constitutional changes proposed by Pericles and Ephialtes. Footnote 501: Here, and throughout the trial, we have to bear in mind the technicalities of Athenian judicial procedure. The prosecutor, in the first instance, tendered to the accused an oath that he was not guilty. This he might accept or refuse. In the latter case, the course of the trial was at least stopped, and judgment might be recorded against him. If he could bring himself to accept it, he was acquitted of the special charge of which he was accused, but he was liable to a prosecution afterwards for that perjury. If, on the other hand, he tendered an oath affirming his guilt to the prosecutor, he placed himself in his hands. Orestes, not being able to deny the fact, will not declare on oath that he is “not guilty,” but neither will he place himself in the power of his accusers. The peculiarities of this use of oaths were: (1) That they were taken by the parties to the suit, not by the witnesses. (2) That if both parties agreed to that mode of decision, the oath was either way decisive. An allusion to the latter practice is found in Heb. vi. 16, and traces of it are found in the law-proceedings of Scotland. If either party refused, the cause had to be tried in the usual way, and witnesses were called. Footnote 502: Æschylos seems here to attach himself to the principles of those who were seeking to reform the practice described in the previous note as being at once cumbrous and unjust, throwing its weight into the scale of the least scrupulous conscience, and to urge a simpler, more straightforward trial. The same objection is noticed by Aristotle in his discussion of the subject. (_Rhet._ i. 15.) Footnote 503: Athena offers herself, not as arbitrator or sovereign judge, but as presiding over the court of jurors whom she proceeds to appoint. Footnote 504: Ixion appeared in the mythical history of Greece as the prototype of all suppliants for purification. When he had murdered Deioneus, Zeus had had compassion to him, received him as a guest, cleansed him from his guilt. His ingratitude for this service was the special guilt of his attempted outrage upon Hera. The case is mentioned again in v. 687. Footnote 505: