Philosophy & Plato

Does anyone have any great activities/resources for teaching ethical codes throughout history?  Currently, I am looking for something for India's Ramayana and Rome's Stoics. 

Additionally, I have a great claymation version of the Allegory of the Cave (Plato) https://www.youtube.com/watch?v=69F7GhASOdM anyone have any addiitonal ideas for Plato?