Oedipus Rex was a tragedy written by the ancient Greek playwright Sophocles. It was first performed around 429 BCE and is considered one of the greatest works of Greek literature. The play tells the story of Oedipus, a king who unknowingly murders his own father and marries his mother. The play explores themes of fate, free will, and the consequences of ignorance. Sophocles’ skillful use of dramatic irony and powerful language has ensured that Oedipus Rex continues to be widely studied and performed today.