Here are some of his most notable achievements:
* Wrote groundbreaking tragedies: Sophocles is best known for his tragedies, which explore complex themes of fate, free will, justice, and human suffering. His most famous works include *Oedipus Rex*, *Antigone*, *Oedipus at Colonus*, and *Electra*.
* Innovated theatrical practice: Sophocles introduced important innovations to Athenian theater, including the use of three actors instead of two, and the development of more complex characterization and plot structures.
* Enhanced the role of the chorus: While maintaining the traditional chorus, Sophocles gave it a more prominent role in his plays, using the chorus to comment on the action, provide background information, and express the emotions of the audience.
* Influenced Western literature and culture: Sophocles' plays have been performed and studied for centuries, and they have profoundly influenced Western literature, theater, and philosophy.
In short, Sophocles was a brilliant playwright who revolutionized Athenian theater and left an enduring legacy on Western culture. His plays continue to be performed and studied today, offering timeless insights into the human condition.