The history of the jo 杖 in Aikido can be traced back to the founder of Aikido, Morihei Ueshiba, who was known for his extensive martial arts training, including the art of the jo. The origins of the jo in Japanese martial arts can be traced back even further, to the 17th century, when Muso Gonnosuke 夢想權之助, a samurai who was defeated in a duel with the legendary swordsman Miyamoto Musashi 宮本武蔵, developed a new form of martial art that focused on the use of a short staff, which he called Shindo Muso Ryu Jojutsu 神道夢想流杖術. Shindo Muso Ryu Jojutsu 神道夢想流杖術 Over time, jojutsu was also incorporated into other martial…