Editing Itsukaichi Line (section)

==History==
[[File:Itsukaichi Line from Musashi-Itsukaichi Station.jpg|thumb|right|Looking from Musashi-Itsukaichi Station towards Musashi-Masuko Station]]
The Itsukaichi Line was built by the Itsukaichi Railway in 1925. In 1930, all sections ([[Tachikawa Station|Tachikawa]] - [[Haijima Station|Haijima]] - [[Musashi-Itsukaichi Station|Musashi-Itsukaichi]] - Musashi-Iwai) were opened. There were two competing railways between Tachikawa and Haijima: the Ōme Electric Railway (now the [[Ōme Line]]) and the Itsukaichi Railway. In 1940, the Itsukaichi Railway was taken over by the Nambu Railway, becoming the Nambu Railway Itsukaichi Line. In 1944, Nambu Railway was nationalized and this line became the [[Japanese Government Railways|JGR]] Itsukaichi Line. At the same time, the section of the line between Tachikawa and Haijima was deemed non-essential and closed. However, the Tachikawa - Musashi-Uenohara and Musahi-Uenohara - [[Nishi-Tachikawa Station|Nishi-Tachikawa]] sections of the former Nambu Railway are still used by [[Chūō Main Line]] and [[Nambu Line]] trains traveling to and from the southern area of Tachikawa Station.

===Chronology===
*24 April 1925: Itsukaichi Railway opens between Haijima (temporary) and Itsukaichi stations ({{Convert|10.62|km|mi|abbr=on}}). Haijima (temporary), Higashi-Akiru, Nishi-Akiru, Masuko, and Itsukaichi stations open.
*15 May 1925: Extension from Haijima (temporary) Station to Haijima Station opens; Haijima (temporary) Station closes.
*16 May 1925: Masuko Station renamed Musashi-Masuko Station.
*1 June 1925: Itsukaichi Station renamed Musashi-Itsukaichi Station.
*20 September 1925: Musashi-Itsukaichi - Musashi-Iwai section opens; Okuno, Musashi-Iwai stations open.
*1 July 1926: Tamagawa Station (freight only) opens.
*1 April 1930: Distance markers changed from miles to kilometres.
*4 April 1930: Construction of Byōinmae Station authorized.
*13 July 1930: Tachikawa - Haijima extension opens; Musashi-Uenohara, Gouchi, Musashi-Fukushima, Minami-Nakagami, Miyazawa, Ōgami, Musashi-Tanaka, Minami-Haijima stations open.
*28 May 1931: Kumagawa Station opens.
*8 December 1931: Musashi-Tanaka - Haijima-Tamagawa freight branch ({{Convert|1.6|km|mi|abbr=on}}) opens; Haijima-Tamagawa Station (freight only) opens. Tamagawa Station is renamed Musashi-Tamagawa Station.
*3 October 1940: Line taken over by Nambu Railway, becomes Itsukaichi Line. Musashi-Tamagawa Station closes.
*1 April 1944: Line is nationalized. Byōinmae Station renamed Musashi-Hikita Station. Musashi-Uenohara, Miyazawa, and Musashi-Tanaka stations close. Origin of freight branch (Musashi-Tanama - Haijima-Tamagawa) moved to Minami-Haijima Station (+1.4&nbsp;km). Distance between Musashi-Itsukaichi and Musashi-Iwai shortened by {{Convert|0.1|km|mi|abbr=on}}.
*11 October 1944: Tachikawa - Haijima section of Main Line and Minami-Haijima - Haijima-Tamagawa section of freight branch close. Gouchi, Musashi-Fukushima, Minami-Nakagami, Ōgami, Minami-Haijima, Haijima-Tamagawa stations close.
*17 February 1961: Haijima - Musashi-Iwai section electrified at 1,500 V DC.
*1 February 1971: Ōkuno - Musashi-Iwai section of main line closes. Passenger service between Musashi-Itsukaichi and Ōkuno ceases; section becomes a freight branch. [[Centralized traffic control|CTC]] installed in all sections.
*15 November 1982: Musashi-Itsukaichi - Ōkuno freight branch closes; all freight services discontinued.
*31 March 1987: Nishi-Akiru Station renamed Akigawa Station.
*1 April 1987: Following privatization of [[Japanese National Railways|JNR]] line becomes part of JR East.
*18 March 2007: New [[E233 series]] trains enter service.
*15 March 2008: Semi-automated door operation starts year-round using E233 series rolling stock.
*20 August 2016: [[Station numbering]] introduced with stations being assigned station numbers between JC81 (Kumagawa) and JC86 (Musashi-Itsukaichi).<ref>{{Cite web |date=6 April 2016 |title=⾸都圏エリアへ 「駅ナンバリング」を導⼊します |trans-title=Introduce “station numbering” to the Tokyo metropolitan area |url=https://www.jreast.co.jp/press/2016/20160402.pdf |archive-url=https://web.archive.org/web/20221207004741/https://www.jreast.co.jp/press/2016/20160402.pdf |archive-date=7 December 2022 |access-date=7 January 2023 |website=jreast.co.jp |language=ja}}</ref><ref>{{Cite web |last=Kusamachi |first=Yoshikazu |date=7 April 2016 |title=JA・JK・JT・AKB…JR東日本、首都圏で駅ナンバリングなど導入へ |trans-title=JA, JK, JT, AKB … JR East to introduce station numbering in the Tokyo metropolitan area |url=https://response.jp/article/2016/04/07/273025.html |archive-url=https://web.archive.org/web/20220806133507/https://response.jp/article/2016/04/07/273025.html |archive-date=6 August 2022 |access-date=7 January 2023 |website=Response Automotive Media |language=ja}}</ref>
*12 March 2022: Excluding all ''[[Holiday Rapid Okutama|Holiday Rapid Akigawa]]'' services, all through service beyond Tachikawa station via the Ōme Line is discontinued.<ref>{{Cite web |date=17 December 2021 |title=2022年3月ダイヤ改正について |trans-title=Information regarding the March 2022 timetable revision |url=https://www.jreast.co.jp/press/2021/hachioji/20211217_hc01.pdf |archive-url=https://web.archive.org/web/20220920163809/https://www.jreast.co.jp/press/2021/hachioji/20211217_hc01.pdf |archive-date=20 September 2022 |access-date=7 January 2023 |website=jreast.co.jp |language=ja}}</ref>
*18 March 2023: ''Holiday Rapid Akigawa'' services are abolished.<ref>{{Cite web |date=13 March 2023 |title="ホリデー快速おくたま"の奥多摩直通運転が終了 |trans-title="Holiday Express Okutama" ends Okutama direct service |url=https://railf.jp/news/2023/03/13/145000.html |access-date=14 March 2023 |website=Japan Railfan Magazine Online |language=ja}}</ref>