Profound social changes happened to Xiangongxianwang since Shangjia period.Before Shangtang overthrew Xia Dynasty,preliminary slave city-states had come into being with state appara tus established.

• 殷先公先王自上甲以后发生了深刻的社会变化，商汤灭夏前已初步形成了部族奴隶方国，建立了国家机器。