|gr=Tang
|j=Tong1
|tl=Thng/Thong
|oc-bs=*
}}
Cheng Tang}} (born Zi Lü}}), recorded on oracle bones as, in English, Tai Yi (太乙) or Da Yi (大乙), was the first king of the Shang dynasty. Tang is traditionally considered a virtuous ruler, as signified with the common nickname of "Tang the Perfect" given to him. According to legend, as the last leader of the Predynastic Shang he overthrew Jie, the last king of the Xia dynasty.
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