When did rape/incest become illegal/something very frowned upon.

by papersandfilters

I'm in the middle of Game of Thrones season 5 (PLEASE NO SPOILERS) and it seems that nearly every guy main character has raped someone and no one cares. Since these people in real life, in the times these are based, had family structures and women they had emotional connections with, why were they so quick, to destroy another womans whole life? When did it become and actual crime and something people would disown or kill you for?

mimicofmodes