| A | B |
| Paul | Apostle who orignally persecuted christians, but later converted and spread christianity helping the religion become separate from Judaism |
| The New Testament | a book compiled by the followers of Jesus, it is a collection of his teachings and part of Christianity's holy book |
| Patriarchs | title given to the bishops of the 5 major cities in the Roman Empire |
| The Pope | the patriarch of Rome and the religious leader for Catholic Christianity |
| Apostles | the followers of jesus who helped spread Christianity |
| Church Councils | early church meetings designed to establish and organize official church doctrine (beliefs) |
| Constantine | first christian emperor of Rome. Moved the capital of the roman empire from Rome to Byzantium and renamed it Constantinople |
| Justinian | Byzantine empire's greatest leader |
| Mosaics | Byzantine art form using tiles of dyed glass to make a picture |
| Icons | religious pictures or statues found in churches and used for worship |
| St. Cyril | famous Christian missionary who spread Orthodox christianity to the slavs by creating a new alphabet (cyrillic) |
| Cyrillic | The Alphabet created by Cyril to teach Christianity to the slavs |
| Slavs | people in E. Europe and Russia who adopted many aspects of Byzantine culture |
| Hagia Sophia | Famous domed church in Constantinople constructed by Justinian and later turned into a mosque and then a museum |
| Orthodox Christianity | Form of christianity practiced in the Eastern Roman empire |
| The Schism | term for the division of the Christian Religion into the Catholic and Orthodox Churches |
| Catholic Christianity | form of christianity practiced in the Western Empire |
| The Ottoman Turks | group who conquered Constantinople in 1400s AD changing the city to a center for Islam |
| Allah | Arabic word for god |
| Muhammed | founder of Islam, considered by muslims to be Allah's most important prophet |
| The Koran | Holy book for Islam |
| 5 pillars of Islam | key beliefs and duties of the followers of Islam |
| Arabic | official language of Islam |
| Mecca and Medina | the two holiest cities for Islam |
| The House of Wisdom | famous Islamic University |
| The Dome of the Rock | famous Islamic mosque in Jerusalem it is the greatest example of Islamic architecture |
| The Battle of Tours | famous battle that ended Islamic expansion into Western Europe. |