How did the geographical location of japan influence its early development?

Geographical location of the Japan influenced its early development. Only some part of its land is good for farming. Rice being the only commonly grown crop. Since it was mainly surrounded by mountains and uneven land, fish and vegetables were common trading things.  

Explanation:

Japan is surrounded by mountains that too volcanic. For a long period of time Japan has been isolated by the rest of the world.

It led a separate life, away from the world. Japan lacks oil or coal.

the noble might have thought that the system was far because they had lot of things and riches and the serf would have thought that the feudal system was un fair because of the way they were treated.