Greek Tragedy and Dionysus

Extract

It has become a firm article of belief that tragic drama, in Greece, grew out of the worship of Dionysus; that is to say, out of ideas and rites connected with the circling year, the mysteries of death and rebirth, alternating joy and sorrow, the sufferings and the triumph of the god, and so on. No doubt this might have happened; it sounds plausible. But did it happen? I think there are good reasons for being very sceptical about the whole theory.