[aiaiaiai]

I will write the history of native martial arts of Japan.
For example,they are "Kendo","Judo"and so on.

Let's start with "Kendo".

The Body of "Kendo" is a variety of old school of Japanese swordplay.
Native swordplay of Japan is named "Kenjyutu" in Japan.
The origin of "Kenjyutu" dates back to ancient times.
They say it was about B.C 1 century.
But we can't call it Kenjyutu.
Because It wasn't fomed as a system of fighting skill.
Besides it,people used sword made of bronze.
A sword made of iron was introduced from China in about D.C 7 century and
it swept through Japan in D.C 8 century.

The first stage of development is in Heian period(about from 8 to 12 century)
In this time people formed "Busi" group as a combatant.
It is because the goverment didn't accept fomal forces and police power in capital city.
That is to say,people in rural area was forsed to form group with fighting skills to self-defense.
Blade desended from China had gradually changed into sword of japanese style"Nihontou" in this time.
(Japanese swords became double-handed style in Heian period.)

The secondary stage is in Sengoku period(about from 1467 or 1493 to 1573).
Japanese swords wasn't major weapon in war.
The reason is that one can't chop the enemy with a armor.
That is why main weapon in war was huge swords,spear,or rod.
It's said that the lords among many parts hier "sumo wrestler" to form group with huge sword or rod.
one can't chop the enemy with a solid armor,so aim to stab or cut gap of the aromor's joint part.
That is why "Busi" often grappled with enemy,which made "Jyujyutu" precursor of "Jyudo".

The third stage is in Edo period.(about from 1600 or 1603 to 1867).
The above "kenjyutu" form is much different from that of Edo period.
Various schools developed in Edo period assume the situation that one have a battle against enemy without a armor.
Light clothes made for much skills.
This is to say, motion was impossible until now became possible.