Yes, ninjas did wear blue clothes (called shozukus) but in Japanese plays at the time the people who went on set to put props on etc. wore black ( or similar dark colors) and some people thought the people who wore black were the ninjas.
Japanese.
Ninjas were Japanese assassins and yes of course.
It depends on your perspective. Ninjas were a secretive class of Japanese agents trained in the arts of espionage and assassination -- the style of stealth and martial arts used by ninjas is called ninjitsu.
Ninjas originated in Japan during the feudal era. They were covert agents skilled in espionage, sabotage, and guerrilla warfare. So, ninjas are Japanese, not Chinese.
Ninjas originate from Japan from their skills that are told in ancient Japanese history
Ninjas are a feature of Japanese history and did not feature in any other culture.
no. ancient Japanese martial artists or "ninjas" used their own skills or would fight with what is called a bokken a large stick...or sharp discs and samurai swords
Whoever hired them.
One of the traditional Japanese garments is called 'kimono.'
A group of ninjas is called a stealth or an ambush
A ninja's throwing star is called a shuriken and it literally translates to"dart" or "throwing star"