What was a negative side to having the rest of the world (Meaning Europe) learn of Mali through the travels of Mansa Musa?

What was the government purpose for creating “day schools”

In 1816, john c. calhoun proposed that: a. that the federal government aid in the construction of roads and canals to improve transportation to and from the west b. the united states should end slavery. c. the united states should increasing the size of the navy and invade central america. d. the united states should annex hawaii

Which law banned slavery anywhere in the united states or it’s jurisdiction