Title: Tanaka Shōzō
Subjects: History, Conservationists, Copper mines and mining, Water, Congresses, Environmental policy, Shakai kagaku, Pollution, Biography, Civil rights workers, Ecologists, Social sciences, Philosophy, Social ethics
Places: Japan, Watarase River Watershed
People: Shōzō Tanaka (1841-1913)
Time periods: 20th century, 19th century