| Term | Definition |
| Thermopylae | Land battle, Persian victory |
| Artemisium | Sea battle, indecisive, Greeks withdraw |
| Salamis | Sea battle, Greek victory |
| Leonidas | Spartan leader killed at Thermopylae |
| Themistocles | Athenian leader responsible for Greek naval strategy |
| Troezen Inscription | Themistocles decree to order an evacuation of Athens |
| Delphic Oracle | Advised Athenians to put their trust in wooden walls and Salamis |
| Peloponnesian forces | Wanted to defend the Peloponnese and criticised for not sending enough hoplites to Thermoplyae |
| Aeschylus | Wrote a play The Persians telling of battle of Salamis |
| Mardonius | Left in command after Xerxes loss at Salamis and return to Persia |