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).
Much of the aiki-ken 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 staff training (called aiki-jō).
Every year on April 29 (the start of the Japanese Golden Week holiday), the annual shrine festival "Aiki Jinja Rei Taisai" (合気神社例大祭 "Grand Festival of the Aiki Shrine") is held by Oomoto priests in commemoration of Ueshiba's death on April 26, 1969.