Euthyphro (/ˈjuːθɪfroʊ/; Ancient Greek: Εὐθύφρων, Euthuphrōn), one of Plato's early dialogues, has been variously dated from 399 to 395 BCE, shortly after the death of Socrates in 399 BCE. Set in the weeks leading up to Socrates's trial, it features Socrates and Euthyphro, a religious expert who attempts to define piety or holiness.