What happened in the part?

Greek audiences may not have been familiar with the particulars of Antigone's story, but they would have recognized the setting of the play and the initial context of its plot - namely, the city of Thebes and the seeming curse that afflicts all members of the royal family. Before we begin to explore the details of this particular story. The prologue is meant to give the audience context and background of the story. You can check out a summary of the prologue here: