How did the Samurai become such a powerful force in Japan.
http://asianhistory.about.com/od/warsinasia/p/SamuraiProfile.htm
http://www-personal.umich.edu/~malokofs/SCA/Persona/History/samurai.html
http://www-personal.umich.edu/~malokofs/SCA/Persona/History/samurai.html