Answer;
-North Africa
Step-by-step explanation;
-The spread of Islam in Africa began in the 7th to 9th century, brought to North Africa initially under the Umayyad Dynasty. Extensive trade networks throughout North and West Africa created a medium through which Islam spread peacefully, initially through the merchant class.
-As Islam spread in the Savannah region, it was quite natural that commercial links should also come to be established with North Africa. Trade and commerce also paved way for the introduction of new elements of material culture, and made possible the intellectual development which naturally followed the introduction and spread of literacy, and for which parts of the Sudan were to become famous in the centuries to come.