| A | B |
|---|
| Constantinople | center of the Byzantine Empire; its location made it the crossroads of Europe and Asia |
| Byzantine Empire | eastern part of the Roman empire |
| Byzantine Empire | greatest influence on the development of early Russia |
| Byzantine Empire | Eastern Orthodox religion, the Cyrillic alphabet, and different styles of art and architecture |
| Emperor Justinian | preserved and transmitted Greek and Roman culture |
| Middle Ages | after the collapse of the Roman empire |
