Two minds on the same track. As I was reading about the Chinese ship, I was thinking -- that's about the same era as Columbus!
Hmmmm. The article does not explain how, or why, Zheng He became a eunuch, although the Chinese were known to do that to foreigners and slaves in order to keep their race pure. Is it possible that Zeng He was from another (sea-faring) country? Fascinating!
Very nice, except that all wooden ships that large have been failures. It requires an iron frame at the least.
So9