荒川区 Arakawa-ku is a special ward located in Tokyo Metropolis, Japan. The area was mainly agricultural in the Edo period. In 1651, Kozukappara, the Tokugawa’s largest execution ground (located next to Minami-Senju station), was built. Beginning in the Meiji era, the area became industrial as factories were built on the water front. After World War II a lot of Koreans settled permanently in Arakawa, many founded their own, often little respected, busineses specialized in the so-called waste industry (kuzumonogyô), recycling various residues and residual materials from the production of the surrounding industrial companies.