The Apology of Socrates by Plato - written by Plato, is a Socratic dialogue of the speech of legal self-defence which Socrates (469-399 BC) spoke at his trial for impiety and corruption in 399 BC.
Specifically, the Apology of Socrates is a defence against the charges of "corrupting the youth" and "not believing in the gods in whom the city believes, but in other daimonia that are novel" to Athens...