Question: When was the band that made De RigueurMortis formed?

full_context: Document 1: De RigueurMortis: De RigueurMortis (stylised as "De Rigueur"Mortis) is a 2001 album by Australian alternative-rock group TISM. Initial copies of this release, dubbed the Connoisseur's Edition, included several untitled tracks and a bonus CD titled "2Pot Screama", a 41-minute "rock opera in one act" which TISM described as "West Side Story with Tourette's syndrome".
Document 2: Rigor Mortis Sets In: Rigor Mortis Sets In is the third solo album by John Entwistle, who was the bassist for The Who. Distributed by Track Records, the album was named John Entwistle's Rigor Mortis Sets In in the U.S. Co-produced by Entwistle and John Alcock, it consists of three Fifties rock and roll covers, a new version of the Entwistle song "My Wife" from The Who's album "Who's Next", and new tracks (only six of the ten songs were new). "Rigor Mortis Sets In" set in motion John Entwistle assembling his own touring unit during the increasing periods of The Who's inactivity.
Document 3: The Mins: The Mins are a Georgian Alternative / New Progressive Rock band established in 2011 by Zviad Mgebrishvili. The band played its first live gig in 2011 on Altervision Newcomers. After that the band started to work hard on their repertoire. They mostly performs original songs and only rarely covers. The main songwriter in the band is Zviad Mgebrishili. Some songs are written by Shota Gvinepadze (keyboard) as well. The band has four music videos on the following songs: "Blind World", "O.W.L.", "My Lover is a Killer" and "I Don't Give a Foot". Zviad Mgebrishvili was participating in the TV show "Akhali Khma" ["The Voice of Georgia"] in 2013 very successfully (5 stages). The band has performed on many festivals and concerts. The band had their first big solo concert in Tbilisi Eventhall 26 May 2014, where they had presentation of their first EP, named "Blind World" (released same year, included 5 songs). The band has an honor to be warm up of "Faithless" (Tbilisi Summer Set 2014) and "Archive" (Tbilisi Open Air/Altervision 2015, where apart from Archive - Placebo, Beth Hart and Black Label Society were the headliners). Zaza Mgebrishvili has left the band in 2015 and new bass player and backing vocal of the band is Nika Abesadze who used to play with Zviad Mgebrishvili early years in the university rock band "Sunny Universe". The band is now recording their first album "First Minute" in the Bravo Records sound recording studio that will be released in the Winter of 2015.
Document 4: List of Nick Cave and the Bad Seeds band members: The following is a complete chronology of the various line-ups of the multinational alternative rock music group Nick Cave and the Bad Seeds. Nick Cave and the Bad Seeds (briefly "Nick Cave – Man or Myth?" and later "Nick Cave and the Cavemen") formed in late 1983 in Melbourne, Australia, by five musicians, including several former members of the group The Birthday Party shortly after this band's demise, and is thus seen as its continuation.
Document 5: Night of the Living Dead Boys: The album was released on CD in two editions, which are significantly different. The first edition, with the "glam" cover (illustrated in this article) had the original song order reshuffled, with poorly done fade-outs and fade-ins. This edition also came with a second section, a reunion show with (at least) Stiv Bators and Cheetah Chrome present, from 1987. This edition also had extensive liner notes detailing Bators' trick of singing off-mike, and claims he re-recorded the entire album in one take, from memory, while drunk and in the booth with two groupies - in other words, typical Stiv.
Document 6: The Beasts of Suburban: The Beasts of Suburban is a 1992 EP by anonymous Australian band TISM. The title is pun on the name of another Australian band, Beasts of Bourbon. TISM's producer for this album, Tony Cohen, previously worked with that group. At the ARIA Music Awards of 1993, he was nominated for Producer of the Year for the track, "Get Thee to a Nunnery". This is the first TISM release to feature Tokin' Blackman on guitar, having replaced Leek Van Vlalen. The track, "Morningtown Ride", was listed as one of the 10 Greatest Songs About Melbourne by ToneDeaf's Corey Tonkin.
Document 7: Group Tamashii: Group Tamashii (グループ魂 , Gurūpu Tamashii ) is a Japanese comedy rock band. It was started by actors in a theatrical company called "Otona Keikaku" (Project Adult) in 1995. Its original members were Hakai (Sadao Abe), Boudou (Kankuro Kudo), and Baito Kun (Seminosuke Murasugi). When it started, the group was just a group of comedians using the guitar. The members perform in many theaters, and also at Shōten. In 1997, bass, guitar, and drum players join and became a band. In 2002 they released their debut album called "Run Tamashi Run" (Run魂Run ) while they were signed to an indie label, "MIDI". In 2005, Group Tamashi signed to Ki/oon Records. The name of the band derives from the song "Tamashi Kogashite" of the rock band ARB. The reason they put the "Group" in the band name is "Nobody didn't say 'Group' by myself." In 2008 they released a long-awaited new album entitled "Patsun Patsun". It was their longest album to date, at 27 tracks, and featured them covering a new variety of musical genres such as reggae and hip-hop. 2010 marks the group's 15th anniversary, and several releases and events are scheduled in honor of it, including a new album entitled 1!2!3!4!.
Document 8: Nick Cave and the Bad Seeds: Nick Cave and the Bad Seeds are an Australian rock band formed in Melbourne in 1983 by vocalist Nick Cave, multi-instrumentalist Mick Harvey and guitarist Blixa Bargeld. The band has featured international personnel throughout its career and presently consists of Cave, violinist and multi-instrumentalist Warren Ellis, bassist Martyn P. Casey and keyboardist Conway Savage (all four from Australia), guitarist George Vjestica (United Kingdom), keyboard/percussionist Toby Dammit (United States) and drummers Thomas Wydler (Switzerland) and Jim Sclavunos (United States). The band has released fifteen studio albums and completed numerous international tours, and has been considered "one of the most original and celebrated bands of the post-punk and alternative rock eras in the '80s and onward".
Document 9: The White Albun: The White Albun is the sixth and final studio album by Australian alternative rock band TISM, released on 24 June 2004 by Madman Entertainment. The title is a reference to and deliberate misspelling of "The White Album", an unofficial name for the album "The Beatles".
Document 10: Tame Impala: Tame Impala ( ) is an Australian psychedelic rock band founded by Kevin Parker in 2007. The group began as a home recording project for Parker, who writes, records, performs, and produces the music. As a touring act, the project consists of Parker (guitar, vocals), Jay Watson (synthesiser, vocals, guitar), Dominic Simper (guitar, synthesiser), Cam Avery (bass guitar, vocals), and Julien Barbagallo (drums, vocals). Previously signed to Modular Recordings, Tame Impala is signed to Interscope Records in the US, and Fiction Records in the UK.
Document 11: Official Bootleg CD: Official Bootleg CD - Live at the Tim Sims Theatre is a Canadian comedy album, performed by The Frantics comedy troupe. It contains largely new material (the only exceptions are "Einstein Song", and "Dutch Cowboys", which derive from their Frantic Times radio series), used in their "Older But Wider" tour in 2004. The sketches were recorded from a single night's performance on June 24, 2004 at the Tim Sims Playhouse in Toronto.
Document 12: Australia the Lucky Cunt: Australia the Lucky Cunt is a five-track extended play released on 3 September 1993 by anonymous Australian alternative rock band, TISM. The title is a play on the expression "The Lucky Country". The album illustrates the heavier rock sound TISM began using on "Beasts of Suburban" (1992) and was intended to be a promotional single for the band's next album, before that album was scrapped in 1994 and replaced with what became "Machiavelli and the Four Seasons" (May 1995). Due to controversy over the EP's cover it was re-issued in November as Censored Due to Legal Advice with new artwork.
Document 13: Temps mort: Temps mort (French for "Time out") is the debut album by French rapper Booba. For the song "Nouvelle école" exists also a remix which features American rap duo Mobb Deep.
Document 14: Marilyn Manson (band): Marilyn Manson is an American rock band formed by singer Marilyn Manson and guitarist Daisy Berkowitz in Fort Lauderdale, Florida, in 1989. Originally named Marilyn Manson & the Spooky Kids, they gained a local cult following in South Florida in the early 1990s with their theatrical live performances. In 1993, they were the first act signed to Trent Reznor's Nothing Records label. Until 1996, the name of each member was created by combining the first name of an iconic female sex symbol and the last name of an iconic serial killer, for example Marilyn Monroe and Charles Manson. Their lineup has changed between many of their album releases; the current members of Marilyn Manson are the eponymous lead singer (the only remaining original member), bassist Twiggy Ramirez, guitarists Paul Wiley and Tyler Bates, and drummer Gil Sharone.
Document 15: TISM: TISM (an acronym of This Is Serious Mum) were a seven-piece anonymous alternative rock band from Melbourne, Australia. The group were formed on 30 December 1982 by vocalist/drummer Humphrey B. Flaubert, bassist/vocalist Jock Cheese and keyboardist/vocalist Eugene de la Hot Croix Bun, and enjoyed a large underground/independent following. Their third album, "Machiavelli and the Four Seasons", reached the Australian national top 10 in 1995.
ground_truth: 30 December 1982