The first is this: that China is not really a nation-state. Okay, it's called itself a nation-state for the last hundred years, but everyone who knows anything about China knows it's a lot older than this. This was what China looked like with the victory of the Qin Dynasty in 221 B.C. at the end of the warring-state period -- the birth of modern China. And you can see it against the boundaries of modern China. Or immediately afterward, the Han Dynasty, still 2,000 years ago. And you can see already it occupies most of what we now know as Eastern China, which is where the vast majority of Chinese lived then and live now.