Their main purpose is to join people who share beliefs. They then debate with people who have different beliefs.
Answer :
Djenné, along with Timbuktu, was long a central point for the diffusion of Islam deep into the continent. Although Islam took firm hold in the city only in the 13th century, when a local ruler converted, it had been filtering in on trade routes from the Mediterranean coast and the Middle East for centuries.
The ninth amendment protects all the rights of citizens that were not mentioned in the Constitution of the United States of America