was a

town A town is a type of a human settlement, generally larger than a village but smaller than a city. The criteria for distinguishing a town vary globally, often depending on factors such as population size, economic character, administrative stat ...

located in Kamitsuga District, Tochigi,

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 ...

. As of 2003, the town had an estimated

population Population is a set of humans or other organisms in a given region or area. Governments conduct a census to quantify the resident population size within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and pl ...

of 3,465 and a

density Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' (or ''d'') can also be u ...

of 18.65 persons per km². The total area was 185.79 km². On March 20, 2006, Ashio, along with the city of Imaichi, the town of Fujihara, and the village of Kuriyama (both from Shioya District), was merged into the expanded city of

Nikkō is a Cities of Japan, city in Tochigi Prefecture, Japan. , the city's population was 80,239, in 36,531 households. The population density was 55 persons per km2. The total area of the city is . Nikkō is a popular destination for Japanese and ...

. The

Ashio Copper Mine The was a copper mine located in the town of Ashio, Tochigi (now part of the city of Nikkō, Tochigi), in the northern Kantō region of Japan. It was the site of Japan's first major pollution disaster in the 1880s and the scene of the 1907 ...

was located in Ashio. This

copper mine Copper extraction is the multi-stage process of obtaining copper from its ores. The conversion of copper ores consists of a series of physical, chemical, and electrochemical processes. Methods have evolved and vary with country depending on the ...

caused a major

pollution Pollution is the introduction of contaminants into the natural environment that cause harm. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the component ...

problem in Japan at the beginning of the 20th century. Subsequent environmental problems related to the mine are still evident along the river, in Tochigi,

Gunma is a landlocked prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 (1 October 2019) and has a geographic area of . Gunma Prefecture borders Niigata Prefecture and Fukushima Prefecture to t ...

and

Ibaraki Prefecture is a Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Ibaraki Prefecture has a population of 2,828,086 (1 July 2023) and has a geographic area of . Ibaraki Prefecture borders Fukushima Prefecture to the north, ...

s. In 1907 the Ashio miners rioted. During

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

POW POW is "prisoner of war", a person, whether civilian or combatant, who is held in custody by an enemy power during or immediately after an armed conflict. POW or pow may also refer to: Music * P.O.W (Bullet for My Valentine song), "P.O.W" (Bull ...

camp was based here to supply slave labour to the copper mines. The following communities agreed to seek the permission of the governor of the prefecture to merge on March 1, 2006: *

* Imaichi * Ashio * Fujihara * Kuriyama

References

* Nimura Kazuo. (1997) ''The Ashio Riot of 1907: A Social History of Mining in Japan''(''Ashio bōdō no shiteki bunseki'' translated by Terry Boardman and Andrew Gordon). Durham, N.C.:

Duke University Press Duke University Press is an academic publisher and university press affiliated with Duke University. It was founded in 1921 by William T. Laprade as The Trinity College Press. (Duke University was initially called Trinity College). In 1926 ...

. (paper)

External links

Nikkō official website
* Dissolved municipalities of Tochigi Prefecture Nikkō, Tochigi {{Tochigi-geo-stub