The photos here are from Dogo and from where many believe bullfighting spread to the other areas of mainland Japan .
Dogo is the main island of the Oki Islands in the Sea of Japan off the coast of Shimane Prefecture .
The photos here are from Dogo , the main island of the Oki Islands in the Sea of Japan off the coast of Shimane Prefecture , and from where many believe bullfighting spread to the other areas of mainland Japan .