| A | B |
| Jerusalem | The capital city of the kingdom of Israel |
| Judaea | The name for Judah as a Roman province |
| Messiah | A deliverer sent by God |
| Jesus | The central figure of the Christian religion |
| Nazareth | The home Jesus left when he began to preach |
| Galilee | The region just north of Judaea |
| Disciples | Follower of Jesus |
| Parables | Story from everyday life used to express spiritual ideas |
| Resurrection | Rising from the dead |
| Apostles | Early Christian leaders |
| Peter | Went to Rome after the death of Jesus and helped set up a church there |
| Paul | He traveled widely and founded churches throughout the eastern Mediterranean |
| Salvation | Saved from sin and allowed to enter heaven |
| Rome | Original capital city of the Roman Empire |
| Persecute | Mistreat (Rome mistreated Christians) |
| Martyrs | People willing to die rather than give up their beliefs |
| Constantine | The Roman emperor who accepted Christianity, ending the persecution of Jews |
| Helena | Constantine's mother who helped to build churches in Rome and Jerusalem |
| Theodosius | The Roman emperor who made Christianity Rome's official religion in A.D. 392 |
| Hierarchy | An organization with different levels of authority |
| Clergy | Leaders of the church |
| Laity | Regular church members |
| Doctrine | Official church teaching |
| Gospel | "Good news" |
| Pope | Special title given to the bishop of Rome |
| Byzantine Empire | Developed from the Eastern Roman Empire |
| Icons | Pictures or images of Jesus, Mary, and the saints |
| Iconoclasts | Government officials ordered to remove all icons from churches; "image breakers" |
| Charlemagne | Frankish king who became emperor |
| Excommunicated | To declare that a person or group no longer belongs to the church |
| Schism | Separation (between the two most important branches of Christianity) |
| Monasteries | Religious communities where Monks banded together |
| Basil | A bishop who came up with a list of rules for monks and nuns to follow; became model for Eastern Orthodox religious life |
| Benedict | An Italian monk who came up with a set of rules for monks and nuns to follow; became the model for monasteries/convents in the West |
| Missionaries | Those who teach their religion to those who do not believe |
| Cyril | With brother, Methodius, carried the Christian message to the Slavs (people of Eastern Europe) |
| Britain & Ireland | Christian missionaries visited these two islands in hopes of spreading their religion |
| Patrick | Priest responsible for bringing Christianity to Ireland |