Well they would bring many things, like they would bring religion, they brought Islam to Africa, from Somalia to Mauritania. Another thing were ideas, Ideas for structures different from what they are used to, more decorations in their buildings, Islamic traders brought ideas for weaponry, swords and shields that are similar to theirs. The clothing styles were brought over to, like the Abaya or the Skeik. Islamic traders had a lot of impact on Sub Saharan Africa.
