it's not only in the west but also on some countries in the east that polygamy/ bigamy is outlawed. the reason is simple, it is illegal in the new testament (bible). i'm not sure what's the reason for buddhist countries like thailand & singapore to adopt monogamy though. for muslim countries like malaysia and indonesia, it is common for muslims there to marry only one. cultural convention, maybe..

in my country, adultery/ concubinage is a serious crime. but it is a crime that is so hard to find evidence of:-)

usapa na...