A quote from Kristof's essay in the NYT about Asia (h/t, Jungle Trader):
For most of the last several thousand years, it would have seemed far likelier that Chinese or Indians, not Europeans, would dominate the world by the year 2000, and that America and Australia would be settled by Chinese rather than by the inhabitants of a backward island called Britain. The reversal of fortunes of East and West strikes me as the biggest news story of the millennium, and one of its most unexpected as well.
and
A half-century before Columbus, Zheng He had reached East Africa and learned about Europe from Arab traders. The Chinese could easily have continued around the Cape of Good Hope and established direct trade with Europe. But as they saw it, Europe was a backward region, and China had little interest in the wool, beads and wine Europe had to trade. Africa had what China wanted -- ivory, medicines, spices, exotic woods, even specimens of native wildlife.
In Zheng He's time, China and India together accounted for more than half of the world's gross national product, as they have for most of human history. Even as recently as 1820, China accounted for 29 percent of the global economy and India another 16 percent, according to the calculations of Angus Maddison, a leading British economic historian.
Asia's retreat into relative isolation after the expeditions of Zheng He amounted to a catastrophic missed opportunity, one that laid the groundwork for the rise of Europe and, eventually, America. Westerners often attribute their economic advantage today to the intelligence, democratic habits or hard work of their forebears, but a more important reason may well have been the folly of 15th-century Chinese rulers.
Yes, the problem was that they didn't appreciate good claret. There's a lesson in that. Read the whole fascinating thing. The link is above.