| A | B |
| Byzantine Empire | The eastern half of the divided Roman Empire |
| Constanople | Capital of the Byzantine Empire |
| clergy | priests, ministers given the authority to contuct church services |
| laity | Church members who are not clergy |
| icons | A Christian religious image or picture of a saint or other holy person |
| iconoclasts | an opponent of the use of icons in the Byzantine church |
| schism | The division in the Christian church,seperating the Roman Catholic and Eastern Orthodox |
| theology | Study of religion |
| regents | person who acts as a temporary ruler |
| mosaic | picture made up of tiny pieces of colored glass, tile, or stone set in mortar |
| illuminated manuscript | book page decorated by hand with eleborate designs |
| monasteries | Comunity of men who have taken religious vows |
| missionaries | person who travels to carry the ideas of a religion to others |
| steppe | wide grassy, semiarid plains of Eurasia, from the Black sea to Altai mts. |
| principalities | territory ruled by a prince |
| boyars | landowning noble of early Russia |