What is Kendo and how did it start?

Kendo originated from the experiences of the samurai who trained to use “nihonto” (Japanese swords) in combat. The samurai thereby acquired a distinctive appreciation of the “principles of the sword”. It is believed that through learning kendo one is able to gain an understanding of the “principles of the sword”.

Explanation:

A Japanese martial art that comes from the experiences of the samurai who trained to use nihoto in combat

Explanation:

c) he felt the constitution clearly gave states this right.