Final answer:
The Athenian philosophy that play was critical to education was revived during the Classical Age of Greece, where it was believed that theater provided a form of education encouraging critical thinking and reflection.
Step-by-step explanation:
The Athenian philosophy that play was critical to education was revived during the Classical Age of Greece. The Classical period, which lasted from 525 BC to 350 BC, was marked by increased creativity and innovation, especially in Athens. During this time, the philosophical schools of Plato and Aristotle, the plays of Athenian dramatists, and the art of Greek sculptors, architects, and painters flourished. The Greeks believed that theater and play provided a form of education that encouraged critical thinking and reflection on societal values and norms.