What happend to the quarrel between north and south over slavery

The reality is that the North's opposition to slavery was based on political and anti-south sentiment, economic factors, racism, and the creation of a new American ideology.

Explanation:

nigger, that word was originated for white folks   to keep black people under

and when black people use it, they know that's just how they greet each other

and when white folks use it, they know there's a double meaning under