Edo shogunate prepared a fire brigade system by the merchantnewly in 1720 of the Edo Period. The shogunate almost divideda town on the west side from the Sumida River(Tokyo) into the small party of 47 , and then named 47 of the hiragana (Japanese) like"I""Ro""Ha"as a party name. It was decided as each party with different Matoi(symbolof fireman), Hanten (firemans coat) to be easy to distinguish it.