After the 13th Amendment Passed that's when the KKK (Ku Klux Klan) and the racism began. Nobody wanted to sell to the African Americans, nobody wanted to give them a job, some states even went so far as to ban the African Americans. Then there where laws passed called the black codes that limited the rights of African Americans. that is when the idea of the 14th amendment got introduced and on the date (July 28, 1868) it was passed and gave all minorities the same rights as everyone else.