What? That's incomplete. What are your choices??
http://www.google.com/search?q=procopius+6th+century+byzantium+smuggling&ie=utf-8&oe=utf-8&aq=t&client=firefox-a&rlz=1R1GGLL_en___US379
Read widely, and maybe you'll find what you need.
According to Procopius, two sixth century Christian monks undertook an elaborate smuggling operation to provide Byzantium with the knowledge to produce
3 answers
what is the ka'bah?
silk