Predynastic Shang
Predynastic Shang or Proto-Shang (; Chinese: 先商) was the tribal Shang dynasty chiefdom situated within the Xia dynasty prior the overthrow of their ruler, Jie of Xia, in traditional Chinese historiography. The Xia–Shang–Zhou Chronology Project identifies the end of Predynastic Shang as c. 1600 B.C., with the founding of the Erligang culture, which is traditionally considered to be the rough date of the Battle of Mingtiao.