Did a Chinese Eunuch Beat Columbus to America?

The Scotsman: An ancient map set to be unveiled next week may prove that it was a Chinese eunuch who discovered America and not Christopher Columbus.

Columbus found the New World in 1492, but a copy of a map dated 1418, to be made public in Beijing and London, could show that it was in fact Admiral Zheng   who got there first—more than 70 years earlier. | story