This is a very crude way to discuss. If you'd read Rothbard you will see he never talks about some fiat-currency but gold ounces and that even those earn their interest. That it's not so with current gold is simply because gold is calculated in...
Well if you think happy is much to strong. How about being relieved? Was the day of the death of Alexander the Great, Caeasar, Hitler, Stalin, Lening or you name it a "happy" day? Well I guess it very depends. If you had been supressed or conquered...