Well thank you. I was about to just stop posting, since people seem to only have knowledge of the very recent view of things. You really can't simply take our modern, accept everything and we will all be OK viewpoint and apply it to history nor practicality.
@Eagleon: Sure, your relationship is fine right now, in fact wonderful for you in some ways. But statistically speaking you're going to go through several of those during your lifetime, with significant suffering at each breakup and problems with insecurity and personal inadequacy throughout that time. I'm sorry, I wish the future was brighter.
On another note, it's very important to consider point of view in history, yes. But I really don't think you can argue that there are not basic morals which everyone must acknowledge, that have never changed. Morality doesn't change, and where you find it violated you will always find someone espousing that violation who stands to gain from it. You may argue that it is alright to steal at some point because you're immoral and you want the right to rob Islamic caravans during the Crusades, or whatever the situation at hand, but no one debates that it's wrong when they don't stand to gain from violating basic moral code.
Natural laws and that point of view were popularized during the Renaissance, but are by no means a new concept dating from that time. As far as morality goes, that's not really something that has changed at all. If you have an example that isn't exactly what I described above, bring it to the table.