Sumida, Tokyo International schools: Sumida maintains sister-city relationships with Seodaemun-gu, Seoul, South Korea, and with Shijingshan District, Beijing, China. Sumida, Tokyo , literally "Ink Field", is a special ward located in Tokyo Metropolis, Japan. The English translation of its Japanese self-designation is Sumida City. As of May 1, 2015, the ward has an estimated population of 257,300, and a population density of 18,690 persons per km². The total area is 13.77 km². Sumida is in the northeastern part of the mainland portion of Tokyo. The Sumida and Arakawa are the major rivers, and form parts of its boundaries. Its neighbors are all
Japanese gunboat Sumida (1903) Japanese gunboat Sumida (1903) "Sumida" was the first gunboat in the Imperial Japanese Navy inventory designed specifically for inland river service. The need for such a vessel to operate on the rivers of the Asian mainland to protect Japanese commercial interests at various treaty ports had been perceived even before the Boxer Rebellion. The Japanese government turned to the United Kingdom, and placed an order for such two such vessels in 1903: one the "Sumida" to John I. Thornycroft & Company and the other to Yarrow Shipbuilders in Scotland. "Sumida", was slightly larger than "Fushimi" and easily distinguishable by having