How old was Morihei Ueshiba when he created aikido?

Nobody knows the exact age of how old Ueshiba was when he "created" Aikido. The term "Aikido" became the official name of the art in 1942 but was called Aikibudo prior to that time. Ueshiba was said to have developed the art in between the 1920's and 30's. That would put his age in the 30's to 40's. He was a very devout student of martial arts and took his time developing Aikido.