I think that the PRC and USSR are good examples of evolutionary change.
I'm way too far into freedom to ever trust a ruling class.
Oh, I see. You are a communist or a socialist. [:-( Oh, well.
Both the PRC and the USSR have had big revolutionary changes with much terrible bloodshed since the U.S. was founded, so they are hardly examples of evolutionary change. Right-left-right for the PRC and left-right for the Russians.
I don't think there are any examples of evolutionary change. It's not the human condition.
Well, maybe Shangri-La, but we can't find it.