Besides slavery being over in the United States, what were some legal, economic, political, social, and cultural changes for African Americans immediately after the Civil War?

Besides slavery being over in the United States, what were some legal, economic, political, social, and cultural changes for African Americans immediately after the Civil War?

Question
Besides slavery being over in the United States, what were some legal, economic, political, social, and cultural changes for African Americans immediately after the Civil War? How did Southern and Northern whites react to these changes? What happened in the South after the US government began to remove federal troops and states started to pass black codes?