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
The plays were written across thirty-six years of Sophocles' career and were not composed in chronological order, but instead were written in the order "Antigone", "Oedipus Rex", and "Oedipus at Colonus". Nor were they composed as a "trilogy" – a group of plays to be performed together, but are the remaining parts of three different groups of plays. As a result, there are some inconsistencies: notably, Creon is the undisputed king at the end of "Oedipus Rex" and, in consultation with Apollo, single-handedly makes the decision to expel Oedipus from Thebes. Creon is also instructed to look after Oedipus' daughters Antigone and Ismene at the end of "Oedipus Rex". By contrast, in the other plays there is some struggle with Oedipus' sons Eteocles and Polynices in regard to the succession. In "Oedipus at Colonus", Sophocles attempts to work these inconsistencies into a coherent whole: Ismene explains that, in light of their tainted family lineage, her brothers were at first willing to cede the throne to Creon. Nevertheless, they eventually decided to take charge of the monarchy, with each brother disputing the other's right to succeed. In addition to being in a clearly more powerful position in "Oedipus at Colonus", Eteocles and Polynices are also culpable: they consent (l. 429, Theodoridis, tr.) to their father's going to exile, which is one of his bitterest charges against them.