It depends on the shape of the stones. If the stones are in the shape of an arrowhead, then yes, they are evidence of early humans. If not, it could be just a piece of broken rock.
The reason why the spanish leaders wanted to push spanish control into North America during this time period was mostly because they wanted to gain more cotrol - which could be obviously achieved through more physical gain of the land of North America.
Answer:
napoleon lost a huge part of his army due to fire set by Russian nationalist, because they could not survive a Russian winter
