Ninja Warriors - From Myth to the Movies

Assassin, warrior, soldier, spy, the exact origins of the ninja are as shadowy as their methods. The legend of the warriors dates back
Mike Clarke / AFP / Getty

Ready for Action
Assassin, warrior, soldier, spy, the exact origins of the ninja are as shadowy as their methods. The legend of the warriors dates back at least to 14th century Japan, when it is said ninjas began secretly working for the ruling clans, performing espionage, assassination, and other acts contrary to the Samurai code.

Get the Latest Photos from Time.com
Get TIME photos and pictures of the week delivered directly to your inbox.