The definition of polygamy according to Webster dictionary is: "The condition of having more than one wife or husband at the same time."  This is not acceptable since there will be  confusion identifying the father of a women's offspring, however, man has been given permission to practice polygyny which webster's dictionary describes as: "The marriage of one male with more than one female."  Restricting the marriage of more than one wife to man alone.  Considering the number of single women in society today not only is it wisdom but necessary.