The 13th, 14th, and 15th amendments are known as the Reconstruction Amendments. They were added to the Constitution as a result of the Civil War, and their purpose was to extend rights and citizenship to former slaves. In doing so, these amendments also guaranteed equality under the law for all citizens.
Some states, especially in the South, passed a series of state laws, known as Jim Crow laws, that limited the rights of certain groups of people, especially African Americans. Jim Crow laws were intended to separate the races and to suggest that any race other than white was inferior.
Click on the pictures below to see more information about relevant Supreme Court cases.