In what ways did the growth of the Mali empire in west Africa impact Afro-Eurasia

Idon't really understand the question. it counts for 20% of my lesson grade and i really need putting the answer into words. anything will . i need asap so im awarding 30 points. a disagreement between states of the united states concerning the rights of states vs. the authority of the national government led to the civil war. state governments were forced by war into a subservient position. what might happen if national governments ceded their authority to a world government by international treaty?

Before the civil war, the south’s economy was based on enslaved labor. large cities. immigrant workers. factories.

What could have been done to stop the illegal voting? what about the violence?