| A | B |
| Hagia Sophia | Church of the Holy Wisdom |
| Diplomacy | Working out political agreements |
| Crusades | Military expiditions against the Turks |
| Turks | Finaly destroyed the Byzantine Empire |
| Greco- Roman | Culture preserved by the Byzantines |
| 1453 | The Year the Byzantine Empire was destroyed |
| 527 | The year Justinian became emperor |
| Byzantine Empire | Protected Europe from Muslim invaders |
| Patriarch | Head of the church in Constantinople |
| Justinian | First great Byzantine ruler |
| Justinian's Code | Basis for the legal code of most of Europe |
| Justinian's dream | Win back Roman Lands |
| Justinian's wife | Theodora |
| Byzantine cavalry | Backbone of the Byzantine army |
| Byzantine army | Highly organized |
| Constantinople | Capital of the Byzantine Empire |
| Defenses of Constaninople | The sea a moat and walls |
| Muslims | Greatest threat to the Byzantines |
| Greek fire | Explosive liquid shot from tubes |
| Language in the Byzantine church | Greek |
| Language in the churches of Western Europe | Latin |
| Pope | Leader of the church in Western Europe |
| Emperor | Leader of the Byzantine church |
| Icon | An immage of Jesus, Mary or a saint. |
| Eastern Orthodox Church | The Christian church of the Byzantines |