| A | B |
| clergy | group of people who have been ordained for religious servies |
| excommunication | act that deprives someone the membership in the church |
| tithe | 1/10 of one's income donated to the church |
| Pope | head of the Roman Catholic Church |
| icon | picture/representation of a sacred Christian person, considered sacred |
| schism | a separation into parts, especially within a christian church |
| classic | art or literature from Greeks and Romans |
| Patriarch | Bishop of Constantinople |
| Constantinople | capital of Byzantine Empire, center of trade in east |
| crusade | military expeditions (wars) led by European Christians to take back the Holy Land from the Muslims |
| infidel | someone who is a nonbeliever in Christianity |
| technology | use of science to solve problems |
| salvation | saving the soul |
| literacy | ability to read and write |
| hierarchy | group of people organized or classified by rank and authority |
| compare | to say how something is similar |
| university | guild of students and teachers |
| Byzantine Empire | the Eastern Roman Empire |
| Jerusalem | Holy Land for Jews, Christians, and Muslims |
| Saladin | leader of the Muslims during the Crusades |