The important thing was not discovering America, but staying once you found it.
If the Chinese did find America before Columbus, then the larger number of Chinese explorers should have spread the illness that the Europeans did.
The Viking landed in America, but the people already there handed the Viking their tailends. It wasn't disease kill the natives that the European stayed.
If the Chinese did find America before Columbus, then the larger number of Chinese explorers should have spread the illness that the Europeans did.
The Viking landed in America, but the people already there handed the Viking their tailends. It wasn't disease kill the natives that the European stayed.