Aristophanes and the Prometheus Bound

It has been acknowledged ever since H. T. Becker's dissertation on Aeschylus in Greek comedy that Aristophanes' plays can provide us with a terminus ante quern for the composition of the Prometheus Bound. The evidence is clearly presented by Becker and shows that there are a large number of echoes, particularly in the Knights and later in the Birds. Of these latter the most interesting occurs at Birds 1547, a line spoken by Prometheus himself, μισ⋯ δ' ἅπατντας τω⋯ θεōὺ ὡς ōἶσθα ςὺ which is certainly meant to parody PV 975, ⋯πλΏ λ⋯γῳ τō⋯ς π⋯ντας ⋯χθα⋯ ρω θεōὺς a line also spoken by Prometheus. It makes explicit what is surely implicit in all Aristophanic imitation, that what we have here is not just a play but a particular context that is so well known that the reference is meant to be picked up not just by the fictional ‘you’ to whom it is addressed but by the audience, too; in short we may infer that the line of the Prometheus Bound was already a classic quotation.