Liao Dynasty in 925 AD Shuaibing pro-conquest of the Bohai Sea, the Bohai Sea to the named Dongdan States, the crown prince of legislation Yelv times for the Dongdan King.

• 公元925年辽太祖率兵亲征服渤海国，改渤海国名为东丹国，册立皇太子耶律倍为东丹国王。