Since the Shang and Zhou dynasty, the Jianghuai area had certain development by Qunshun, liu and Chao dependencies, but still was more unenlightened consumedly than the developed central plains.

• 商周时期,经过群舒、六、巢等方国的开发,江淮地区已有一定的发展,但仍远远落后于中原地区。