My presentation topic is about racial segregation in the USA

As we know, America was known as the country that slavery occured for years.  After African American was deliberated from slavery, there was a bit change in the prejudice of Americans especially the ones in Southern states.  Colored people especially Blacks was suffering an extreme discrimination that led to the racial segregation in America.  Whites always thought that they are superior race and they didn't except the fact that Blacks really had the right to do the same thing with them.  Even some Southern states used to have state laws against African Americans.  I'm gathering information from some reliable links in the online library and hopefully I can find some more down in the campus library.  As this topic connected to my Sociology class that we have learned about Race and Ethnicity chapter, I hope to explain racial segregation from a sociology perspective not in the other ways.  One thing that I'm also considering and I think I'm gonna cover it in my presentation that is racial segregation really gone in the U.S nowaday? So hopefully, I can find the right answer for my question through doing researches.