틀린부분좀 고쳐주세요. 꼭부탁드립니다.

a lot of people were brought from africa. exceptfor a very few rich plantation owners, most southerners were slaves. as thenorth america has been industrialized, they have larger population and greaterwealth. we generally opposed to slavery. i also have red title of uncle tom’s cabin by harriet b. stowe. itrepresented our real life. i could know that not only african-american has beendiscriminated a lot but also they were killed or sexual assaulted by southamerican. we are all the human being. how dare to do that!