As this is the Clown Bin, I only have one reply - the Dominican political system.I acknowledge there is development in moral systems, however, do you think there is or ever was anywhere a time or place where hiding and running away for a fight / confrontation would be considered the right thing to do? Or where take everything you can get at the expense of others would be applauded at? The basis of any moral system is an universal moral law that is given, did not develop or come into being.
If it wasn't the Clown Bin, I'd point to all the different belief systems devised by humans and ask why you happen to follow one that coincides with the era and geographical location you happen to have been born into, as opposed to say, Zoroastrianism, or the Greek Gods?