are
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
ese
bell
A bell /ˈbɛl/ () is a directly struck idiophone percussion instrument. Most bells have the shape of a hollow cup that when struck vibrates in a single strong strike tone, with its sides forming an efficient resonator. The strike may be m ...
s smelted from relatively thin
bronze
Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals (such as phosphorus) or metalloid ...
and richly decorated. ''Dōtaku'' were used for about 400 years, between the second century BCE and the second century CE (corresponding to the end of the
Yayoi period
The Yayoi period (弥生時代, ''Yayoi jidai'') (c. 300 BC – 300 AD) is one of the major historical periods of the Japanese archipelago. It is generally defined as the era between the beginning of food production in Japan and the emergence o ...
), and were nearly only used as decorations for
rituals. They were richly decorated with patterns representing
nature
Nature is an inherent character or constitution, particularly of the Ecosphere (planetary), ecosphere or the universe as a whole. In this general sense nature refers to the Scientific law, laws, elements and phenomenon, phenomena of the physic ...
and
animal
Animals are multicellular, eukaryotic organisms in the Biology, biological Kingdom (biology), kingdom Animalia (). With few exceptions, animals heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, ...
s, among which the
dragonfly
A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of dragonflies are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threat ...
,
praying mantis
Mantises are an order (Mantodea) of insects that contains over 2,400 species in about 460 genera in 33 families. The largest family is the Mantidae ("mantids"). Mantises are distributed worldwide in temperate ...
and
spider
Spiders (order (biology), order Araneae) are air-breathing arthropods that have eight limbs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude spider silk, silk. They are the largest order of arachnids and ran ...
are featured. Historians believe that ''dōtaku'' were used to pray for good
harvests, as the animals featured are
natural enemies of insect pests that attack
paddy fields.
The
Yasu City History and Folklore Museum in
Yasu,
Shiga Prefecture
is a landlocked prefecture of Japan in the Kansai region of Honshu. Shiga Prefecture has a population of 1,398,972 as of 1 February 2025 and has a geographic area of . Shiga Prefecture borders Fukui Prefecture to the north, Gifu Prefecture to th ...
, Japan (nicknamed the "''dōtaku'' museum") has a permanent exhibition devoted to the bells.
History
During the
Yayoi Era
The Yayoi period (弥生時代, ''Yayoi jidai'') (c. 300 BC – 300 AD) is one of the major historical periods of the Japanese archipelago. It is generally defined as the era between the beginning of food production in Japan and the emergence of ...
(1000 BCE – 300 CE), a great number of technological innovations occurred. Unlike the earlier nomadic
Jōmon people, the Yayoi emphasized having large community settlements and the cultivation of rice.
Along with these, they learned how to cast
bronze
Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals (such as phosphorus) or metalloid ...
and
iron
Iron is a chemical element; it has symbol Fe () and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's o ...
in order to create various metal objects such as weapons, mirrors, and several tools. Among the bronze objects, ''dōtaku'', one of the most distinctive objects of the era, were created. In recent years, ''dōtaku'' have been studied by researchers in order to decipher their origins, how they were created, their various purposes, and the reasons for the images on the main body.
Origin
Despite being a well-known artifact of the Yayoi era, the concept of ''dōtaku'' did not initially originate in
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
. According to several studies, these
bell
A bell /ˈbɛl/ () is a directly struck idiophone percussion instrument. Most bells have the shape of a hollow cup that when struck vibrates in a single strong strike tone, with its sides forming an efficient resonator. The strike may be m ...
s are thought to be derived from "earlier, smaller Korean examples that adorned horses and other domesticated animals",
from Chinese cattle bells, or
Han Chinese
The Han Chinese, alternatively the Han people, are an East Asian people, East Asian ethnic group native to Greater China. With a global population of over 1.4 billion, the Han Chinese are the list of contemporary ethnic groups, world's la ...
''zhong'', which were bells without clappers used for composing ritual music. However, further studies show that the Yayoi did not have
cattle farms, and although several ''dōtaku'' do have suspension rings and
clappers, they make "muffled tones"
or "rattling sounds"
when struck, suggesting that they were not meant to be rung.
Therefore, any bells from China were imported as ritual objects.
Locations

In total, over four hundred ''dōtaku'' have been found in
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
,
mainly in
western Honshu, the Tokai District, Shikoku, and the
Kansai
The or the lies in the southern-central region of Japan's main island Honshū. The region includes the prefectures of Nara, Wakayama, Kyoto, Osaka, Hyōgo and Shiga, often also Mie, sometimes Fukui, Tokushima and Tottori. The metropoli ...
region, namely
Kyoto
Kyoto ( or ; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in the Kansai region of Japan's largest and most populous island of Honshu. , the city had a population of 1.46 million, making it t ...
,
Nara
The National Archives and Records Administration (NARA) is an independent agency of the United States government within the executive branch, charged with the preservation and documentation of government and historical records. It is also task ...
, and
Osaka
is a Cities designated by government ordinance of Japan, designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the List of cities in Japan, third-most populous city in J ...
.
The "first recorded discovery of ''dōtaku''" was in 662 CE at a temple located in
Shiga Prefecture
is a landlocked prefecture of Japan in the Kansai region of Honshu. Shiga Prefecture has a population of 1,398,972 as of 1 February 2025 and has a geographic area of . Shiga Prefecture borders Fukui Prefecture to the north, Gifu Prefecture to th ...
.
They are often "found buried on isolated hillsides"
either ‘singly,
npairs, or in large groups"
along with various bronze mirrors and weapons. When buried in groups, researchers have speculated that several clans each buried their only ''dotaku'' in one area to signify the unity of all the clans.
Appearance
Physically, the body of a ''dōtaku'' consists of "a truncated cone shape"
with an oval cross-section and "has rows of horizontal bands divided in the center by a vertical row".
Arching and extending over the top and the sides of the body is an "elaborate flange filled with
saw
A saw is a tool consisting of a tough blade, Wire saw, wire, or Chainsaw, chain with a hard toothed edge used to cut through material. Various terms are used to describe toothed and abrasive saws.
Saws began as serrated materials, and when man ...
tooth design and projecting spirals".
The materials used for ''dōtaku'' came from both Korea and China since "bronze resources were not found until the 7th century",
thus bronze was considered more precious than iron.
In addition, researchers have detected lead traces inside the bells, which was a common characteristic of Chinese metals.
These Yayoi bells vary in height ranging from 4 inches to 50 inches,
approximately 10 cm to 127 cm. In conjunction with the varying height, the styles of the bells also varied greatly. Across several regions, this scattered production continued until a group of bronze-smiths congregated and decided on a standard.
Making
These bells were originally made through the use of two-part
sandstone
Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sand ...
moulds, in which "designs were carved"
in order to create the appearance of raised bronzes on the outer surface. Many of these sandstone moulds were "found in abundance in
northern Kyushu"
and near Kyoto, Osaka, and Nara.
As time progressed, ''dōtaku'' gradually became larger in size and thinner because they began to be made using
clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolinite, ). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impuriti ...
moulds instead of sandstone.
This allowed for more detailed work, such as simple line drawings, compared to the smaller and thicker sandstone moulds.
Main purpose
Other purposes of the ''dōtaku'' are still being debated by researchers, but it is certain that they were used for agricultural rituals and rites, as supported by various sources.
Researchers suggest that, when not in use, ''dōtaku'' were buried "in the ground to receive Earth’s
life force",
thus ensuring agricultural fertility for the community;
they were also believed to have been used to pray for rain. These beliefs and suggestions are supported by the fact that many ''dōtaku'' had inscriptions of "flowing water,
waterfowl
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which i ...
, fish, boats, and agricultural objects"
on them. Although it is unknown whether or not ''dōtaku'' were "used by the chieftains for small principalities or by villages in public community festivals",
it is certain that they belonged to the community as a whole rather than an individual.
Some alternate theories include ''dōtaku'' being used as "a
sundial
A sundial is a horology, horological device that tells the time of day (referred to as civil time in modern usage) when direct sunlight shines by the position of the Sun, apparent position of the Sun in the sky. In the narrowest sense of the ...
, producing gold, heating water for bathing, or related to secret Jewish practices", although these explanations have little support within the mainstream archaeological community.
Similarities with Chinese imagery
Decorations on ''dōtaku'' contain many aspects that resemble Chinese objects. For example, many early bells had "delicate decorations
hat
A hat is a Headgear, head covering which is worn for various reasons, including protection against weather conditions, ceremonial reasons such as university graduation, religious reasons, safety, or as a fashion accessory. Hats which incorpor ...
resemble contemporary
Chinese mirrors".
It wasn’t until later in the Yayoi era that decorations "with scenes of animals and humans hunting or farming"
were used. Along with these depictions, there are also images of the typical Yayoi "
elevated granaries and scenes of
rice being pounded".
Deer
Many depictions of
deer
A deer (: deer) or true deer is a hoofed ruminant ungulate of the family Cervidae (informally the deer family). Cervidae is divided into subfamilies Cervinae (which includes, among others, muntjac, elk (wapiti), red deer, and fallow deer) ...
appear on ''dōtaku'' the most, even though the "Yayoi ate mostly
wild boar
The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a Suidae, suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The speci ...
".
According to "''Harima Fudoki''",
which is a series of reports comprised in the
Nara period
The of the history of Japan covers the years from 710 to 794. Empress Genmei established the capital of Heijō-kyō (present-day Nara). Except for a five-year period (740–745), when the capital was briefly moved again, it remained the capita ...
(710 C.E. – 793 C.E.), there was "a magical ritual of sowing seeds in deer blood that was used to speed up the germination of rice plants"
because it was believed that "the deer’s life force helped the growth of rice."
Research
There have also been studies as to whether or not the images on the ''dōtaku'' have significant meanings. According to a researcher named Oba, each picture contains a hidden
pictograph
A pictogram (also pictogramme, pictograph, or simply picto) is a graphical symbol that conveys meaning through its visual resemblance to a physical object. Pictograms are used in systems of writing and visual communication. A pictography is a wri ...
that can be deciphered through a phonetic reading. For example, a picture of a man shooting a deer can be read as "''iru ka''" (to shoot a deer),
but when combined to form "Iruka", the pictures refer to
Soga no Iruka, which is a reference to the
Soga Dynasty.
Through several more readings, Oba discovered that the drawings "contain references to precise persons, places, and events in Japanese prehistory"
as well as provided "info of shapes of buildings, hunting customs, and other aspects of daily life",
possibly left for future generations. However, due to a lack of concrete evidence, other researchers have deemed it improbable that the pictures are actually hidden pictographs; it is possible that the pictures are just pictures. Despite the lack of evidence, researchers do believe that the pictures aren’t just casual pictures drawn for the sake of art, that there is some other meaning behind them.
See also
*
Bonshō
, also known as or are large bell (instrument), bells found in Buddhist temples in Japan, Buddhist temples throughout Japan, used to summon the monks to prayer and to demarcate periods of time. Rather than containing a clapper, are struck fr ...
*
Bronze-casting
*
Jōmon Era
*
Mirrors in Shinto
References
External links
*
Comprehensive Database of Archaeological Site Reports in Japan Nara National Research Institute for Cultural Properties
{{DEFAULTSORT:Dotaku
Archaeology of Japan
Bells (percussion)
Japanese art terminology
Yayoi period
Japanese musical instruments
Bronze objects