Sean Carroll in Preposterous Universe:
Those of us living in democracies tend to take the idea for granted. We forget what an audacious, radical idea it is to put government power into the hands of literally all of the citizens of a country. Where did such an idea come from, and where is it going? Political scientist David Stasavage has written an ambitious history of democracy worldwide, in which he makes a number of unconventional points. The roots of democracy go much further back than we often think; the idea wasn’t invented in Athens, but can be found in a large number of ancient societies. And the resurgence of democracy in Europe wasn’t because that continent was especially advanced, but precisely the opposite. These insights have implications for what the future of democracy has in store.