Dinastía Han. Dinastía Imperial china (206 a.n.e.-220), fundada por Liu Bang (cuyo título Imperial fue Gaozu), un humilde soldado de fortuna que llegó a ser duque de pei, después príncipe Han y por último (206 a.n.e) emperador de China. Los Han lograron hacer China un poderoso estado unificado.
If you're referring to the Civil War era, in the years leading up to the war, once such compromise could have been that slavery could continue to exist where it was, but not spread to other states.
Well you can rule out communism since that is not an economic system but a system of government. Socialism is the answer you are looking for. Socialism involves the division of everything into equal parts. No economic classes is a major trait of Socialism.