 Much of the aiki-jō syllabus was developed by Morihei Ueshiba (植芝 盛平 "Ueshiba Morihei", 1883–1969) at his dojo in Iwama, Japan, at the same time he developed aikido's sword training (called "aiki-ken").It is well documented that Ueshiba studied several different styles of martial arts, including the art of the spear ("sōjutsu") and the modern art of the bayonet or "Jūkendō".The aiki-jō techniques taught by Ueshiba were a distillation and modification of that training, with an emphasis upon the use of the "jō" as a method for the refinement of one's empty-handed aikido techniques.