How did the Nubians become famous being traders

[Spv]

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?

 

[Snorrie]

Perhaps "The Original: I can get it for you cheaper around the corner folks"? One can not quarrel with success.

 

[Hayseed]

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.