How did the Nubians become famous being traders

Spv

Nov 3, 2020
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How did the Nubians become famous being traders?
What did they trade?
the stuff they traded . . .
Where did it come from?
how much of it was traded?
 
Mar 4, 2020
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Not how, but why. Location, location, location. Just like all other trading centers. Trading centers are choke points for fast easy travel......between supply and demand.