Question

According to Procopius, two sixth century Christian monks undertook an elaborate smuggling operation to provide Byzantium with the knowledge to produce

Answer 1

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.

Answer 2

what is the ka'bah?

Answer 3

silk