| A | B |
|---|
| Justinian | powerful ruler of Byzantine Empire |
| Justinian Code | Body of Roman law |
| Hagia Sophia | Church destroyed by rioters and rebulit by Justinian |
| patriarch | leader of the Eastern church |
| icon | religious image used in practices by eastern Christians |
| excommunication | formal declaration that someone is no longer a member of the church |
| Cyrillic alphabet | Russian alphabet |
| Slavs | people from the forests north of the Black Sea |
| Vladimir | ordered all of his subjects to adopt Christianity |
| Ivan III | Moscow prince who led rebellion against Mongol rule |
| czar | Russian emperor |
