Kise stable (2003)

The Mihogaseki stable (三保ヶ関部屋, Mihogaseki-beya) was a stable of sumo wrestlers, part of the Dewanoumi ichimon or group of stables. Its last head coach, former ōzeki Masuiyama Daishirō II who took charge in November 1984, was the son of the previous head, also an ōzeki under the name Masuiyama Daishirō. He produced nine sekitori in that time, the last being the Russian Aran in July 2008. Until September 2006 the stable also had Baruto in the top division, but he later moved to a newly formed stable, Onoe. Being close to the mandatory retirement age, Mihogaseki wound his stable up in October 2013, with himself and his remaining wrestlers moving to Kasugano stable. Aran chose to retire instead.

Morishita Station (森下駅, Morishita-eki) is a subway station in Kōtō, Tokyo, Japan, operated by Toei Subway. Its station numbers are S-11 (Shinjuku Line) and E-13 (Ōedo Line).

Nishikido stable (Japanese: 錦戸部屋, Nishikido-beya) is a stable of sumo wrestlers, one of the Takasago group of stables. It was founded in 2002 by Mitoizumi of the Takasago stable. It was home to the only Kazakh wrestler in professional sumo, Kazafuzan, who competed in the makushita division and retired in September 2014. In 2015, the stable recruited Canadian Brodi Henderson of Victoria who competed as Homarenishiki, but he suddenly left sumo the following year. Several other wrestlers retired at the same time, leaving just five active wrestlers in the stable after July 2016. In 2017, the Mongolian Mitoryū (Turbold Baasansuren) joined as a makushita tsukedashi entrant from Nihon University, and he became the stable's first ever sekitori after the November 2017 tournament. (Another wrestler, Gokushindo, was ranked in jūryō for just one tournament in November 2018.) The retirement of Gokushindo after the May 2022 tournament left Mitoryū as the stable's only active wrestler (jonokuchi ranked Fujiizumi has not competed since September 2021).

Hakkaku stable (八角部屋, Hakkaku-beya) is a stable of sumo wrestlers, part of the Takasago ichimon or group of stables. It was established in September 1993 by former yokozuna Hokutoumi, who took with him four wrestlers from Kokonoe stable. The stable has so far produced nine sekitori, four of whom have reached the makuuchi division. As of November 2022 it had 28 wrestlers, the largest in professional sumo. Many Hakkaku wrestlers have the kanji 北勝 (pronounced hokuto or hokutō) in their ring name, taken from the former name of their head coach.

The Tokitsukaze stable (時津風部屋, Tokitsukaze-beya) is a stable of sumo wrestlers in Japan, one of the Tokitsukaze group of stables. It was founded in 1769 and was dominant during the Taishō period. In its modern form it dates from 1941 when it was established by Futabayama, who was still an active wrestler at the time. It was known as Futabayama Dojo until it was re-named Tokitsukaze stable in November 1945 when Futabayama retired. (The stable has the names of both Futabayama and Tokitsukaze at its entrance.) Upon Futabayama's death in 1968 the former Kagamisato took charge for a short time, but Futabayama's widow wanted Yutakayama Katsuo to take over, which he did upon his retirement in 1969. He in turn passed control of the stable on to his successor Futatsuryū in August 2002. As of January 2022 it had 17 active wrestlers, two of whom are sekitori. The death of 17-year-old junior member Tokitaizan (real name Takashi Saito) in a hazing scandal on June 26, 2007, eventually resulted in the dismissal and six years in prison for Futatsuryū. This compelled Tokitsuumi, a long time top division wrestler from the stable, to retire from active sumo and take over as the new head of the stable.Tokitsuumi was asked by the Japan Sumo Association to retire in February 2021 after twice violating COVID-19 safety protocols. Tokitsukaze stable was taken over by former maegashira Tosayutaka.

The revenge of the forty-seven rōnin (四十七士, Shijūshichishi), also known as the Akō incident (赤穂事件, Akō jiken) or Akō vendetta, is a historical 18th-century event in Japan in which a band of rōnin (lordless samurai) avenged the death of their master. The incident has since become legendary. It is one of the three major adauchi vendetta incidents in Japan, alongside the Revenge of the Soga Brothers and the Igagoe vendetta.The story tells of a group of samurai who were left leaderless after their daimyō (feudal lord) Asano Naganori was compelled to perform seppuku (ritual suicide) for assaulting a powerful court official named Kira Yoshinaka. After waiting and planning for a year, the rōnin avenged their master's honor by killing Kira. They were then obliged to commit seppuku for the crime of murder. This true story was popularized in Japanese culture as emblematic of the loyalty, sacrifice, persistence, and honor that people should display in their daily lives. The popularity of the tale grew during the Meiji era, during which Japan underwent rapid modernization, and the legend became entrenched within discourses of national heritage and identity. Fictionalized accounts of the tale of the forty-seven rōnin are known as Chūshingura. The story was popularized in numerous plays, including in the genres of bunraku and kabuki. Because of the censorship laws of the shogunate in the Genroku era, which forbade portrayal of current events, the names were changed. While the version given by the playwrights may have come to be accepted as historical fact by some, the first Chūshingura was written some 50 years after the event, and numerous historical records about the actual events that predate the Chūshingura survive. The bakufu's censorship laws had relaxed somewhat 75 years after the events in question in the late 18th century when Japanologist Isaac Titsingh first recorded the story of the forty-seven rōnin as one of the significant events of the Genroku era. To this day, the story remains popular in Japan, and each year on 14 December, Sengakuji Temple, where Asano Naganori and the rōnin are buried, holds a festival commemorating the event.

The Edo-Tokyo Museum (江戸東京博物館, Edo Tōkyō Hakubutsukan) is a historical museum located at 1-4-1 Yokoami, Sumida-Ku, Tokyo in the Ryogoku district. The museum opened in March 1993 to preserve Edo's cultural heritage, and features city models of Edo and Tokyo between 1590 (just prior to the Edo period beginning) and 1964. It was the first museum built dedicated to the history of Tokyo. Some main features of the permanent exhibitions are the life-size replica of the Nihonbashi, which was the bridge leading into Edo; scale models of towns and buildings across the Edo Meiji, and Showa periods; and the Nakamuraza theatre.Designed by Kiyonori Kikutake, the building is 62.2 meters tall and covers 30,000 square meters. The concrete exterior is designed based on a traditional rice storehouse (takayuka-shiki style) and is the same height as the Edo Castle. Kikutake claimed that the building "crystallizes Japanese culture in built form," concerning the structure's traditional references but contemporary execution. There are eight floors, one below ground and seven elevated off the ground by four columns, with an open air plaza at ground level. The first floor has a museum shop, restaurants, and a ticket counter. The primary entrance is on the third floor, reached by a bright red escalator from the plaza. The fifth and sixth floors contain permanent exhibits, with temporary special and feature exhibits on the first and fifth floors. The seventh floor is a library that houses 560,000 texts and cultural items related to Edo and Tokyo.The museum opened thirteen years after the Shitamachi Museum and six years after the Fukagawa Edo Museum, all part of a national trend for building local history museums. The exhibits for all three were primarily designed by Total Media.Formerly owned and operated by the Tokyo Metropolitan Government, the Edo-Tokyo Museum is accented by the Edo-Tokyo Open Air Architectural Museum across the city in Koganei Park. The Edo-Tokyo Museum is now operated by the Tokyo Metropolitan Foundation for History and Culture.

Ryōgoku (両国) is a district in Sumida, Tokyo. It is surrounded by various districts in Sumida, Chūō, and Taitō wards: Yokoami, Midori, Chitose, Higashi Nihonbashi, and Yanagibashi. In 1659, the Ryōgoku 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 (the forerunner of Tokyo in Musashi Province) and Shimōsa Province. The district derived its name from that of the bridge. The Forty-seven rōnin avenged the death of their lord, Asano Naganori, by breaking into the mansion of his enemy, Kira Yoshinaka, in 1703. Part of the mansion has been preserved in a public park in Ryōgoku. Ryōgoku Station in the neighboring Yokoami district was opened in 1904, bringing rail transportation to the area. It is regarded as the heartland of professional sumo. Most training stables or heya are based there. The first Ryōgoku Kokugikan stadium for sumo was completed in 1909. The present one was built in 1985 in the Yokoami district north of Ryōgoku. Three of professional sumo's six annual official tournaments take place there.

Miyagino stable (宮城野部屋, Miyagino-beya) is a stable of sumo wrestlers, part of the Isegahama ichimon or group of stables. It was founded by the 43rd yokozuna Yoshibayama as Yoshibayama dōjō while he was still an active wrestler, before changing to its current name in 1960.In August 2004 former jūryō division wrestler Kanechika took over in controversial circumstances from former maegashira Chikubayama, who had been in charge since 1989. Unusually, the new stablemaster was from a different ichimon (Kanechika belonged to Kitanoumi stable, part of the Dewanoumi ichimon, in his days as an active wrestler). Kanechika was able to take control of the stable because he married one of the daughters of the 9th Miyagino's widow, who owned the toshiyori name, which Chikubayama was only borrowing, and was adopted by her as her son. Chikubayama, who had guided future yokozuna Hakuhō to the top division, was able to stay on as a coach in the stable by acquiring the Kumagatani name. However, in December 2010 he regained control of the Miyagino name and stable after Kanechika was disciplined by the Sumo Association for being caught on tape discussing match-fixing. As of January 2021, the stable had 16 wrestlers.In March 2020 the stable recruited, on Hakuho's recommendation, a 2 meter tall Mongolian born wrestler named Hokuseihō. He was raised in Hokkaido from the age of five, allowing Miyagino to circumvent the Sumo Association's one foreigner per stable rule. He won consecutive championships in the second half of 2020 with perfect records in the jonokuchi, jonidan and sandanme divisions. In July 2021 he won the makushita championship and was promoted to jūryō. Miyagino stable missed two tournaments in 2021 due to outbreaks of COVID-19. The stable withdrew from the January basho after Hakuhō tested positive, and from the September basho after Hokuseihō and another lower-division wrestler tested positive.

Kikukawa Station (菊川駅, Kikukawa-eki) is a railway station in Sumida, Tokyo, Japan. Its station number is S-12. The station opened on December 21, 1978.

Ryōgoku Station (両国駅, Ryōgoku-eki) is a railway station in Yokoami, Sumida, Tokyo, Japan, operated by East Japan Railway Company (JR East) and Tokyo Metropolitan Bureau of Transportation (Toei).

Dewanoumi stable (出羽海部屋, Dewanoumi-beya) is a stable of sumo wrestlers, part of the Dewanoumi ichimon or group of stables. It has a long, prestigious history. Its current head coach is former maegashira Oginohana. As of January 2022 it had 15 wrestlers.