>You have to keep in mind though that Timbuktu for example didn't spring out of nothing but thanks to Muslims from the North.
This would be like calling Sicilly an Arabic city. Timbuktu grew as a center of trade within Black Africa as a result of trade with the northern Arabic and Arabized Berber states. This does not make it any less valid as an example.
PS: May not look like it, but I largely agree with you.