Merchants: You CAN use many on one resource.

[Shahed]

I just tried the merchant fort i.e

-Build fort using a general on a resource.
-Put in a few merchants.

Each merchant in the fort will now be trading the resource.

I have tried this with 3 merchants in a fort just outside Constantinople, trading silk. All three are n00bish merchants but are making about a 1000Florins/Turn all together in that fort.

Don't know if this is intended but it works anyway.

*sees a mad rush to build forts in Timbuktu*