The Empress Theodora 
Mosaic from San Vitale, Ravenna, Italy, ca. 550 CE

The Greek civilization is inextricably related to the Byzantine era.  The Byzantine Empire can be traced to 330 A.D., when the Roman emperor Constantine I dedicated a “new Rome” on the site of the ancient Greek colony of Byzantium.  The blossom of the Byzantine civilization reflected the influence of the Greek, Roman and Oriental cultural presence.

• History channel: Byzantine Empire
• 10 interesting facts about the Byzantine Empire
• Encyclopedia Britannica: Byzatine Empire 
• Ancient History: Byzantine Empire
• The Byzantine Greeks' Heritage from the Hellenic Greeks 

• The Cambridge History of the Byzantine Empire 

• Holy Women of Byzantium
• Prosopography of the Byzantine World 
• Online Catalogue of Byzantine Seals