Arakawa, Tokyo to the southwest, Bunkyo. South of Arakawa is Taito, and southeast is Sumida. The area was mainly agricultural in the Edo period. In 1651, Kozukappara, the Tokugawa's largest execution ground (now 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. In 1932, it became one of the 35 wards of Tokyo City. MIAT Mongolian Airlines's Tokyo Branch Office is on the fifth floor in the Tachibana Building in Arakawa. Iseki, a tractor and engine equipment manufacturer has its Tokyo head office in the ward. Arakawa
Japanese gunboat Sumida (1939) Japanese gunboat Sumida (1939) "Sumida" was the second of two vessels in the river gunboats authorized under the 3rd Naval Armaments Supplement Programme of 1937. "Sumida" had a hull with an overall length of and width of , with a normal displacement of 338 tons and draft of . She was propelled by two Kampon steam turbine engines with two boilers driving two shafts, producing and had a top speed of 17 knots. The ship was armed with one /28 cal. gun and one 25mm machine gun. " Sumida" was laid down on 13 April 1939 and launched 30 October