| Term | Definition |
| Aeschylus | Author of the ORESTEIA trilogy of plays |
| Sophocles | Author of the plays OEDIPUS REX and ANTIGONE |
| Euripides | Author of MEDEA and other tragedies |
| Artistophanes | Satiric playright |
| Herodotus | Historian of the persian wars |
| Thucydides | Historian of the Peloponnesian wars |
| Thales of Miletus | Early philosopher who taught that everything is made of water |
| Pythagoras of Samos | Philosopher who focused on mathamatics |
| Democritus of Abdera | Philosopher who helped origionate atomic theory |
| Socrates | Philosopher who redirected philosophy from natural to moral issues |
| Plato | Philosopher who wrote the REPUBLIC |
| Aristotle | Philosopher who focused on the study of nature |
| Zeno | Founder of the Stoic school of philosophy |
| Epicurus | Philosopher who strove for tranquillity |
| Philip 2 | King of Macedonia who established dominance over most of Greece |
| Alexander the Great | King of Macedonia who conquered Persia |
| Darius 3 | King of Persia defeated by Alexander the Great |
| Aristachus | Astronomer who championed the heliocentric theory of the universe |
| Eraosthenes | Astronomer who calculated the earth's circumference |
| Ptolemy of Alexandria | Astronomer whose geocentric model of the universe was accepted for over 1500 years |
| Euclid | Geometer whose theorems are still taught |
| Archimedes | The greated mathematician of antiquity |