Ancient Greek literature
Seven works of Sophocles have survived, the most acclaimed of which are the three Theban plays, which center around the story of Oedipus and his offspring. The Theban Trilogy consists of "Oedipus the King", "Oedipus at Colonus", and "Antigone". Although the plays are often called a "trilogy," they were actually written many years apart. "Antigone", the last of the three plays sequentially, was actually first to be written, having been composed in 441 BC, towards the beginning of Sophocles's career. "Oedipus the King", the most famous of the three, was written around 429 BC at the midpoint of Sophocles's career. "Oedipus at Colonus", the second of the three plays chronologically, was actually Sophocles's last play and was performed in 401 BC, after Sophocles's death.
Sophocles
Although the list of over 120 titles of plays associated with Sophocles are known and presented below, little is known of the precise dating of most of them. "Philoctetes" is known to have been written in 409 BC, and "Oedipus at Colonus" is known to have only been performed in 401 BC, posthumously, at the initiation of Sophocles' grandson. The convention on writing plays for the Greek festivals was to submit them in tetralogies of three tragedies along with one satyr play. Along with the unknown dating of the vast majority of over 120 play titles, it is also largely unknown how the plays were grouped. It is, however, known that the three plays referred to in the modern era as the "Theban plays" were never performed together in Sophocles' own lifetime, and are therefore not a trilogy (which they are sometimes erroneously seen as).