Answer:
Oedipus learning he murdered his father and wedded his mother.
Step-by-step explanation:
Oedipus Rex, a play written by Sophocles, is widely regarded as one of the most important examples of the drama genre in Ancient Greece. It famously tells the story of Oedipus and how this character, unwillingly and unknowingly, murdered his father and wedded his own mother. The climax in this story is presented, precisely, at the point where Oedipus learns these two latter facts. This leads to his blinding and his exile.