Thus when Protagoras ventured to read, at the house of the freethinking Euripides, a treatise of his own, beginning with the avowal that he offered no opinion as to the existence of the Gods, life being too short for the inquiry, [608] the remark got wind, and he had to fly for his life, though Euripides and perhaps most of the guests were very much of the same way of thinking. [609] In the course of his flight, the tradition goes, the philosopher was drowned; [610] and his book was publicly burned, all who possessed copies being ordered by public proclamation to give them up--the earliest known instance of "censorship of the press." [611] Partisan malice was doubtless at work in his case as in that of Anaxagoras; for the philosophic doctrine of Protagoras became common enough. It is not impossible, though the date is doubtful, that the attack on him was one of the results of the great excitement in Athens in the year 415 B.C. over the sacrilegious mutilation of the figures of Hermes, the familial or boundary-God, in the streets by night. It was about that time that the poet Diagoras of Melos was proscribed for atheism, he having declared that the non-punishment of a certain act of iniquity proved that there were no Gods. [612] It has been surmised, with some reason, that the iniquity in question was the slaughter of the Melians by the Athenians in 416 B.C., [613] and the Athenian resentment in that case was personal and political rather than religious. [614] For some time after 415 the Athenian courts made strenuous efforts to punish every discoverable case of impiety; and parodies of the Eleusinian mysteries (resembling the mock Masses of Catholic Europe) were alleged against Alkibiades and others. [615] Diagoras, who was further charged with divulging the Eleusinian and other mysteries, and with making firewood of an image of Herakles, telling the God thus to perform his thirteenth labour by cooking turnips, [616] became thenceforth one of the proverbial atheists of the ancient world, [617] and a reward of a silver talent was offered for killing him, and of two talents for his capture alive; [618] despite which he seems to have escaped. But no antidote to the bane of fanaticism was found or sought; and the most famous publicist in Athens was the next victim.