The country that had a smoother transition into feudalism is: western Europe.
<h3>What is feudalism?</h3>
Feudalism can be defined as a the process in which a land owner allowed people own a land or parcel of land in exchange for rendering service to the land owner.
The western Europe had a smooth transition into feudalism because they wanted to be protected which is why they created a system that allow the people of upper classes to provide protection for lower classes in exchange for their loyalty to them.
Therefore the country that had a smoother transition into feudalism is: western Europe.
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.