In 1860, what did northern and southern states disagree over the most? a. where the westward boundary of the united states should be b. slavery and the power of the national government c. the growth of manufacturing in the southern states d. what to do about native american groups living on the plains

mali had been a state inside of the ghanaian empire. after ghana fell because of invading forces and internal disputes, mali rose to greatness under the leadership of a legendary king named sundiata, the "lion king." the songhai empire, already weakened by internal political struggles, went into decline.