<span>The Islamic Empire spread across parts of Africa, Europe, and Asia. The empire was very powerful, and also very warlike.</span>
(Long term) Jim crow system resulted in continuing to allow racial prejudice and other injustices to the blacks
)Short term) was to put many blacks back in to slavery and another was sharecropping was difficult to overcome so by working to there former master the blacks would be controlled once more
I bet many things happened in 1790, on Brain.ly you need to be more specific. :)