Answer:
Preservation of Greek arts and literature.
Explanation:
Without the Byzantine Empire, most of Greek literature, art and cultures, and maybe the ancient Greek themselves would've been lost in history.
Yes it did, it might not have had enough vehicles
The geography of the Silk Roads then is a complex interaction between the physical and climate zones of mountain, steppe or grasslands, and river valleys and oases which often are bounded by uninhabitable desert. Thus populations could be dispersed (in the grasslands) or concentrated in the oases and river valley
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