Milestone Events: The Trial and Execution of Socrates
Ancient Greece and Rome: Philosophy, Greek and Hellenistic
Gale World History Online: Epicureanism
Encyclopedia of Philosophy: Sophists
Encyclopedia of Philosophy: Antiquity
**Milestone Documents: Plato's 'Allegory of the Cave'
**Voices of Ancient Greece and Rome: An Intellectual on Trial
**Voices of Ancient Greece and Rome: Socrates and Protagoras Discuss Issues in Education
** = Primary source(s) included