Why did aikido begin?

Aikido began when a Japanese man now reffered to as O Sensei (great teacher) took Ju Jit Su. He thought "what if there was a way to defend oneself without hurting the opponent. He took some Ju Jit Su techniques, and some of his own and invented a way to keep out of harms way. While not having to severly hurt your opponent. Therefore he created Aikido. Which, in Japan, means harmonzing with energy. This is a way to not hurt yourself, or your opponent, while still defending yourself.