Ninjas were originally farmers that were treated unfairly by the Samurai, and war lords. They were not as well train as the Samurai and in a fair fight the farmers would lose, so they did they wait til the Samurai had his back turned to strike. If want more look for the Deadliest Warrior: Spartan Vs. Ninja.
P.S. Go here: http://sites.Google.com/site/ninjainsight/
It began in the ghettos of Kobe, Japan, and yes, i do enjoy ninjas! There was no art of Ninjas ninjas didn't exist
Ninjas are Warriors and Warriors are Ninjas but Ninjas would win.
no ninjas exist in runescape!
Ninjas
Because there ninjas.
Only Awesome Ninjas do!
I know that females were ninjas, but it is impossible to know the percentage of ninjas were female.
some ninjas are not peaceful. Ninjas are supposed to be peaceful. some ninjas are mean bye!
Knights, because ninjas are not actually fighters. Ninjas that fight are myths. Ninjas only fight if they need to defend themselves.
Ninjas are/were NOT considered to be cannibals. Ninjas were known to be stealthy and fast. Eating people is neither.
ninjas of corse
Ninjas have been around since the days of Noah of the Bible. Ninjas shall always be around.