The farmers of old Okinawa used the Tongfa in their every day life and the farming of their rice fields. You will also see the original ways they used these tools in self defence against the samurai who used the Naginata The lineage of these forms is impeccable as they are the way Okinawan Masters Hiroshi Kinjo and Toyama Kanken taught them directly to Richard Kim in post WWII Yokohama Japan around 1952. Richard Kim learned the Naginata form Yoshida Kotaro.