The first polygamist on record is Lamech, who married two wives, Adah and Zillah. Lamech was Adam and Eve's great great great great grandson. This lineage marriage is mentioned in Genesis 4:18-24.
Polygamy is found in the history of Christianity, Islam, and Judaism, which all share the traditions of Abraham, Jacob (Israel), and other ancient characters who practiced polygamy.
First it is not Muslim religion, it is Islam. Islam began historically on the Arabian peninsula, in the towns of Mecca and Medina (near the west coast inland from the Red Sea). Muhammad (570-632 CE)...