Where he thought that he landed was india that is why native american's are called indians often in history and or by people in general
One way is that medieval Europe had knights to protect people and followed the code of chivalry and medieval Japan had samurai
Slate is much more commonly found in wet areas, especially around rivers in the United States, so it wouldn't be very available to Natives who were more inland.
It created many knew countries that had previously never existed.
