Which city was the greatest of the early west african trading centers and the seat of a muslim university?

The answer is Timbuktu. It is an ancient city in Mali, located in 20 km north of the River Niger. The town is the capital of the Timbuktu Region, one of the eight administrative regions of Mali. It is best known for its well-known Djinguereber Mosque and admired Sankore University, both of which were established in the early 1300s under the period in office of the Mali Empire, most famous ruler, Mansa Musa.

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

answer: the third option is your answer

explanation: