"From the time of Adam and Eve, the relationship between a man and a woman has been unique and ordained by God. Eve was created for Adam and to complete his need for companionship. Our earliest records of history depict unification between a man and a woman and their respect for a higher being. It wasn't until Abraham disobeyed God that other women came into the picture and left generations of unrest for those who chose to take more than one wife."
The History of Wedding Traditions
by BridalWhimsy.com