Those who built nations with high technologies (for the period) and complex political systems. Who do you think did that, or, were they not your ancestors? 
Those who built nations with high technologies (for the period) and complex political systems. Who do you think did that, or, were they not your ancestors?
I would also add that many civilizations of thousands of years ago were far more advanced then the aborigines of 300 years ago.
Ouch Bill...a little candor is hard for folks