Who invented nunchucks?

The nunchuck's inventor is unknown. However, nunchucks were used during the Samurai Age in Japan and other parts of Asia. In rice farms, they were swung in circles to hit rice plants to drop the plant's rice into a basket. Sometimes, a samurai would harass and steal from local farmers. In return, the farmers figured out how to use their tools, such as the nunchuck, psi (a three-pronged mini-sWord), and staff, for protection.