A was a
flag
A flag is a piece of fabric (most often rectangular or quadrilateral) with a distinctive design and colours. It is used as a symbol, a signalling device, or for decoration. The term ''flag'' is also used to refer to the graphic design emp ...
used in
Edo period
The or is the period between 1603 and 1867 in the history of Japan, when Japan was under the rule of the Tokugawa shogunate and the country's 300 regional ''daimyo''. Emerging from the chaos of the Sengoku period, the Edo period was character ...
Japan by to notify people of a fire near or within a building. It was taken up on a roof near the burning building by the and waved to draw the attention of other groups of
firefighters, who would then hurry to the site of the fire to assist. Each different group of firemen in the Edo period had their own to identify themselves.

In modern Japan, the is only used for
ceremonial
A ceremony (, ) is a unified ritualistic event with a purpose, usually consisting of a number of artistic components, performed on a special occasion.
The word may be of Etruscan origin, via the Latin '' caerimonia''.
Church and civil (secular ...
purposes.
References
Bibliography
Japan Hikeshi (Firemen) Preserving Foundation
Flags of Japan
History of firefighting
Edo period
Japanese words and phrases
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