1. The document provides background information on Greek tragedy, including its origins in religious ceremonies and structure, which involved alternating episodes and choral odes.
2. It discusses key playwrights like Aeschylus and Sophocles, noting Sophocles focused on the human world rather than divine themes. His plays featured a protagonist struggling against fate.
3. The document also summarizes the classic Greek myth of Oedipus and his family that Sophocles explored in several of his surviving plays.