What do you think has caused stereotypes about Africa?

I thnk the thing that caused sterotypes about Africa was the speculations about Africa, its occupants, and their way of life have advanced in the Western world since the long periods of frontier settlement.

Explanation:

the declaration states, “we hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness….”