What did the Byzantine Empire accomplish?

Related questions

1. Why is it called Byzantine?
2. What is asynchronous Byzantine fault tolerance?
3. What does the word Byzantine mean in English today?
4. What is the purpose of an icon in Byzantine Christianity?
5. What is the difference between Byzantine and Roman Catholic?
6. What language did Constantine the Great speak?
7. What is Byzantium called now?
8. What is the poem Byzantium about?
9. Who led the 4th crusade?
10. Why is Byzantine art important?

Tags

1. #belief
2. #empire
3. #church
4. #authority
5. #western
6. #world
7. #achievements
8. #strong
9. #christianity
10. #byzantine
11. #contributions
12. #whole
13. #first
14. #united