What makes oedipus a tragic hero? why does he blind himself? roles do the choruses assume? what makes him a tragic hero? different types of irony in Oedipus rex the play

In his Poetics, Aristotle outlined the ingredients necessary for a good tragedy, and he based his formula on what he considered to be the perfect tragedy, Sophocles's Oedipus the King. According to Aristotle, a tragedy must be an imitation of life in the form of a serious story that is complete in itself; in other words, the story must be realistic and narrow in focus. A good tragedy will evoke pity and fear in its viewers, causing the viewers to experience a feeling of catharsis. Catharsis, in Greek, means "purgation" or "purification"; running through the gamut of these strong emotions will leave viewers feeling elated, in the same way we often claim that "a good cry" will make one feel better.