| A | B |
| Athens | Greek city-state with powerful navy and defeated the Persians at Battle of Salamis |
| Battle of Marathon | Pheidippides ran to Sparta for help against the Persians in this battle. |
| Battle of Thermopylae | This battle took place in a narrow mountain pass. |
| Cyrus the Great | He united the Persians. |
| Darius I | He reorganized the Persian government. |
| Immortals | 10,000 soldiers who had the responsibility to guard the Persian king. |
| Persia | Won the battle of Thermopylae. |
| Royal Road | Its creation allowed the Persian army to travel easily throughout the empite, thus making the empire stronger. |
| satraps | Officials who collected taxes and served as judges. |
| Sparta | Lost the battle of Thermopylae. |
| Zoroastriansim | THe chief religion of the Persian empire. |
| Themistocles | Led the Athenians at the Battle of Salamis. |
| Plataea | THe final battle of the Persian Wars. |
| Xerxes | Son of Darius. Fought the Greeks in the Battle of Salamis. |
| Leonidas | Spartan king during the battle of Thermopylae. |
| Persia | Empire that stretched from Turkey to India. |
| Narrow channel | Location of the Battle of Salamis. |
| Pheidippides | Greek who ran to Sparta for help during the Battle of Marathon. |