The bo was developed from a farming tool called a tenbin. A stick placed across the shoulders with baskets or sacks hanging from either end.
The sai is believed to be a variation of a tool used to create furrows in the ground when planting seeds.
The tonfa was originated from the handle of a millstone used for grinding grain.
Nun cha ku
The nun cha ku was evolved from a tool which separates seeds from grain. It also has origins to a horse's bit.
The eiku is based on the common oar used throughout the Ryukyu islands.
The kama was developed from a traditional farming sickle typically used for harvesting grain crop or cutting grass or hay
Traditional Okinawan Weapons:
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