Musashi Province (武蔵国 Musashi no kuni ) was a province of Japan, which today comprises Tokyo Prefecture, most of Saitama Prefecture and part of Kanagawa Prefecture. It was sometimes called Bushū (武州). The province encompassed Kawasaki and Yokohama. Musashi bordered on Kai, Kōzuke, Sagami, Shimōsa, and Shimotsuke Provinces.
Musashi was the largest province in the Kantō region.
The name Musashi, recorded in early records as 牟射志 muzasi, has been conjectured to be of Ainu origin. It has no apparent meaning in Japanese, but mun-sar-i or mun-sar-ihi (weed-marsh-POSS) is a hypothetical Ainu form that would mean "marsh/wetland of (i.e. belonging to) weeds/inedible or otherwise useless plants," and Musashi sits in the middle of the Kanto plain.
Musashi had its ancient capital in modern Fuchu, Tokyo and its provincial temple in what is now Kokubunji, Tokyo. By the Sengoku period, the main city was Edo, which became the dominant city of eastern Japan. Edo Castle was the headquarters of Tokugawa Ieyasu before the Battle of Sekigahara and became the dominant city of Japan during the Edo period, being renamed Tokyo during the Meiji Restoration.
The former province gave its name to the battleship of the Second World War Musashi.
Timeline of important events in Musashi
- 707 (Keiun 4): Copper was reported to have been found in Musashi province in the region which includes modern day Tokyo.
- 708 (Keiun 5): The era name was about to be changed to mark the accession of Empress Gemmei; but the choice of Wadō as the new nengō for this new reign became a way to mark the welcome discovery of copper in the Chichibu District of what is now Saitama Prefecture. The Japanese word for copper is dō (銅); and since this was indigenous copper, the "wa" (the ancient Chinese term for Japan) could be combined with the "dō" (copper) to create a new composite term—"wadō"—meaning "Japanese copper".
- May 5, 708 (Wadō 1, 11th day of the 4th month): A sample of the newly discovered Musashi copper was presented in Gemmei's Court where it was formally acknowledged as Japanese copper. The Wadō era is famous for the first Japanese coin (和同開珎, wadokaiho or wadokaichin).
- 1590 (Tenshō 18): Siege of Odawara. Iwatsuki Domain and Oshi Domain founded in Musashi Province.
Musashi Province had 21 districts, added one after.
- Adachi District (足立郡)
- Chichibu District (秩父郡)
- Ebara District (荏原郡)
- Iruma District (入間郡)
- Kami District (賀美郡, 加美郡)
- Katsushika District (葛飾郡)—Transfer from Shimōsa Province in 1683 (some say 1622–1643) for the river improvement of Naka River.
- Kodama District (児玉郡)
- Koma District (高麗郡)
- Kuraki District (久良岐郡)
- Hanzawa District (榛沢郡)
- Hara District (幡羅郡)
- Hiki District (比企郡)
- Naka District (那珂郡)
- Niikura District (新座郡, 新倉郡, 新羅郡）
- Obusuma District (男衾郡)
- Ōzato District (大里郡)
- Saitama District (埼玉郡)
- Tachibana District (橘樹郡)
- Tama District （多摩郡, 多麻郡, 多磨郡)
- Toshima District (豊嶋郡)
- Tsuzuki District (都筑郡)
- Yokomi District (横見郡)
- Nussbaum, Louis-Frédéric (2005). "Musashi" in Japan Encyclopedia, pp. 669-671 at Google Books.
- There are dialectical words of Ainu origin in the Tohoku region where si corresponds to Hokkaido Ainu hi
- Vovin, Alexander (2008). "Man'yōshū to Fudoki ni Mirareru Fushigina Kotoba to Jōdai Nihon Retto ni Okeru Ainugo no Bunpu." Kokusai Nihon Bunka Kenkyū Sentā.
- "Map of Bushū Toshima District, Edo". World Digital Library. Retrieved 6 May 2013.
- "Nationwide List of Ichinomiya," p. 3.; retrieved 2011-08-09
- Nussbaum, "Hikawa-jinja" at p. 311 at Google Books.
- Brown, Delmer M. (1979). Gukanshō, p. 271.
- Titsingh, Isaac. (1834). Annales des empereurs du japon, p. 63. at Google Books
- Brown, Delmer M. and Ichirō Ishida, eds. (1979). Gukanshō: The Future and the Past. Berkeley: University of California Press. 10-ISBN 0-520-03460-0 [Amazon-US | Amazon-UK]; 13-ISBN 978-0-520-03460-0 [Amazon-US | Amazon-UK]; OCLC 251325323
- Kōta Kodama and Kitajima Masamoto. (1966). 物語藩史. 第2期第2卷, 関東の諸藩 (Monogatari hanshi. 2(2), Kantō no shohan). Tokyo: Shin Jinbutsu Ōraisha. OCLC 673172166
- Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. 10-ISBN 0-674-01753-6 [Amazon-US | Amazon-UK]; 13-ISBN 978-0-674-01753-5 [Amazon-US | Amazon-UK]; OCLC 58053128
- Titsingh, Isaac. (1834). Annales des empereurs du Japon (Nihon Odai Ichiran). Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland. OCLC 5850691.