Ryogoku Jr Line Map

Ryƍgoku is a district in Sumida, Tokyo. It is surrounded by various districts in Sumida, ChĆ«Ć, and Taitƍ wards: Yokoami, Midori, Chitose, Higashi Nihonbashi, and Yanagibashi. In 1659, the Ryƍgoku Bridge was built, spanning the Sumida River just upstream of its confluence with the Kanda River. Its name, meaning "two provinces", came from its joining Edo 

Ryƍgoku is a district in Sumida, Tokyo. It is surrounded by various districts in Sumida, ChĆ«Ć, and Taitƍ wards: Yokoami, Midori, Chitose, Higashi Nihonbashi, and Yanagibashi. In 1659, the Ryƍgoku Bridge was built, spanning the Sumida River just upstream of its confluence with the Kanda River. Its name, meaning "two provinces", came from its joining Edo and Shimƍsa Province. The district derived its name from that of the bridge.
Data from: en.wikipedia.org