The Economist reports on an 18th century copy of a map originally made in the early 15th century that shows "that the world and all its continents were discovered by a Chinese admiral named Zheng He." All this is, somehow, related to the book 1421: The Year China Discovered America. I guess well hear more. This is the Economists last paragraph:
"The consequences of the discovery of this map could be considerable. If it does indeed prove to be the first map of the world, the history of New World discovery will have to be rewritten, claims Mr Menzies. How much does this matter? Showing that the world was first explored by Chinese rather than European seamen would be a major piece of historical revisionism. But there is more to history than that. It is no less interesting that the Chinese, having discovered the extent of the world, did not exploit it, politically or commercially. After all, Columbuss discovery of America led to exploitation and then development by Europeans which, 500 years later, made the United States more powerful than China had ever been."