Across
- 8. Country where Constantinople is today
- 10. Justinian's wife
- 12. City named after a Roman emperor
- 13. Someone who tries to convert others to a particular religion
- 14. Byzantine empire's central church
- 16. An event that split Christianity into two separate churches
- 18. A statement of beliefs adopted by Constantine & eastern bishops
- 19. The leader of the Roman Catholic Church
Down
- 1. One of the two main leaders of Eastern Orthodox Christianity
- 2. A Strait in which the city is built on
- 3. Byzantine emperor from 527-565
- 4. Alphabet created by Cyril & Methodius
- 5. Official religion of Constantinople
- 6. Official language spoken in Constantinople
- 7. City-state where Constantinople was located
- 9. An empire that conquered the Byzantine in 1453
- 11. The name of the current Pope of the Roman Catholic Church
- 15. A chemical mixture that burned furiously, even in water
- 17. Capital city of the "New" Rome
