Psychosexual development character Oedipus, who unwittingly killed his father, Laius, and sexually possessed his mother, Jocasta. Analogously, in the phallic stage, a girl's decisive psychosexual experience is the Electra complex, her daughter–mother competition for psychosexual possession of father. This psychological complex derives from the 5th-century BC Greek mythologic character Electra, who plotted matricidal revenge with Orestes, her brother, against Clytemnestra, their mother, and Aegisthus, their stepfather, for their murder of Agamemnon, their father, (cf. "Electra", by Sophocles). Initially, Freud equally applied the Oedipus complex to the psychosexual development of boys and girls, but later developed the female aspects of the theory as
Oedipus complex unconscious guilt. Freud believed that the Oedipal sentiment has been inherited through the millions of years it took for humans to evolve from apes. He based this on his analysis of his feelings attending the play, his anecdotal observations of neurotic or normal children, and on the fact that " Oedipus Rex" was effective on both ancient and modern audiences. (He also claimed that the play "Hamlet" "has its roots in the same soil as "Oedipus Rex"", and that the differences between the two plays are revealing. "In ["Oedipus Rex"] the child’s wishful fantasy that underlies it is brought into