Jujitsu or Jiu Jitsu, literally meaning the "art of softness", or "way of yielding", is the ancient hand-to-hand fighting art of the samurai. Jujutsu evolved among the samurai of feudal Japan as a method for defeating an armed and armored opponent without weapons. Recorded as early as 230 BC. In the late 19th and early 20th centuries, Aikido and Judo were created from the study of various schools of Jujutsu.
Due to the ineffectiveness of striking against an armored opponent, the most efficient methods for neutralizing an enemy took the form of pins, joint locks, and throws. These techniques were developed around the principle of using an attacker's energy against him, rather than directly opposing it.