| A | B |
| Inflation | The decrease in the value of money, accompanied by a rise in prices. |
| Mercenary | A foreign soldier who works for money. |
| Diocletian | A atrong-willed army leader who helped slow the decline of the Roman Empire by dividing into Greak-Speaking East and Latin-Speaking west. |
| Constantine | Leader of the Roman Empire who ended the persicution of the Christians. |
| Constantinople | "City of Constantine" It was previously called Byzantium. |
| Alaric | King of the Visgoths |
| Attila | king of the Huns, most successful barbarian leader. |
| Justinian Code | The body of Roman civil law collected and organized by order of the Byzantine Empire or Justinian around 534. |
| Hagia Sophia | The cathedral of Holy Wisdom in Constanople, built by Justinian. |
| Patriarch | head bishop in the Eastern Branch of Christianity |
| Icons | Religious symbols |
| Iconoclasts | People who distroyed icons during the 8th aand 9th centuries. |
| Excommunication | the taking away of a person's right of membership in the Christian Church |
| schism | a split or division- especially a formal split within a christian church |
| Cryllic Alphabet | an alphabet used for the writing of Slavic languages |
| Political causes of the fall of Rome | political office was seen as a burden rather than a reward (honor), Military interference with politics, Civil war and unrest, Division of Europe, Moving of the capital to Byzantium |
| Social causes of the fall of Rome | Decline of interest in public affairs, Low confidence in the empire, Disloyalty, lack of patriotism, corruption, Contrast between rich and poor |
| Military causes of the fall of Rome | Threat from Northern European tribes, Low funds for defense, Problems recruiting Roman citizens, recruiting non-Romans, Decline of patriotism and loyalty among soldiers |
| Economic causes of the fall of Rome | Poor harvest, Disruption of trade, No more war plundering, Gold and silver drain, Inflation, Crushing tax burden, Widening gap between the rich and poor |
| Immediate causes of the fall of Rome | Pressure from Huns, Invasion my Germanic Tribes, sack of Rome, conquest by invaders |