Question: When was the band which was one of the pioneers of  new genre of rock with Rekuiem formed? 

Context articles: Rekuiem
Gnaeus Naevius
Charles K. Harris
List of punk rock bands, L–Z
List of punk rock bands, 0–K
Bloodletting Press
Banana Boat
Diamond Head (band)
Reality Serum
Zone (band)

Rekuiem, formerly spelt 'Requiem', was founded in the beginning of the new wave of British heavy metal movement in the UK by Steve Slater (guitar), Gordon Denny (bass), Mike Reid (vocal), Karl Wilcox (drums).
 The band were pioneers of this new genre of rock amongst others such as Witchfinder General, Diamond Head, Jameson Raid, Angel Witch and Iron Maiden.
 Rekuiem pursued their own style of metal which later became known as doom metal.
 They were influenced by Black Sabbath and wanted to create something that was even heavier.
Gnaeus Naevius ( ; c. 270 – c. 201 BC) was a Roman epic poet and dramatist of the Old Latin period.
 He had a notable literary career at Rome until his satiric comments delivered in comedy angered the Metelli family, one of whom was consul.
 After a sojourn in prison he recanted and was set free by the tribunes (who had the tribunician power, in essence the power of habeas corpus).
 After a second offense he was exiled to Tunisia, where he wrote his own epitaph and committed suicide.
 His comedies were in the genre of Palliata Comoedia, an adaptation of Greek New Comedy.
 A soldier in the Punic Wars, he was highly patriotic, inventing a new genre called "Praetextae Fabulae", an extension of tragedy to Roman national figures or incidents, named after the "Toga praetexta" worn by high officials.
 Of his writings there survive only fragments of several poems preserved in the citations of late ancient grammarians (Charisius, Aelius Donatus, Sextus Pompeius Festus, Aulus Gellius, Isidorus Hispalensis, Macrobius, Nonius Marcellus, Priscian, Marcus Terentius Varro).
Charles Kassel Harris (May 1, 1867 – December 22, 1930) was a well regarded American songwriter of popular music.
 During his long career, he advanced the relatively new genre, publishing more than 300 songs, often deemed by admirers as the "king of the tear jerkers".
 He is one of the early pioneers of Tin Pan Alley.
This is a list of notable punk rock bands (letters L through Z).
 The bands listed have played some type of punk music at some point in their career, although they may have also played other styles.
 Bands who played in a style that influenced early punk rock—such as garage rock and protopunk—but never played punk rock themselves, should not be on this list.
 Bands who created a new genre that was influenced by (but is not a subgenre of) punk rock—such as alternative rock, crossover thrash, grunge, metalcore, new wave, and post-punk—but never played punk rock, should not be listed either.
This is a list of notable punk rock bands (numbers 0–9 and letters A through K).
 The bands listed have played some type of punk music at some point in their career, although they may have also played other styles.
 Bands who played in a style that influenced early punk rock—such as garage rock and protopunk—but never played punk rock themselves, should not be on this list.
 Bands who created a new genre that was influenced by (but is not a subgenre of) punk rock—such as alternative rock, crossover thrash, metalcore, new wave, and post-punk—but never played punk rock, should not be listed either.
Bloodletting Press was launched in 2002 by Larry Roberts to publish works in the horror genre specifically for the collector's market, producing low print run limited editions intended for collectors and unique heirloom Lettered Editions for the high-end collectors.
 They were originally located in Modesto, California, but have since relocated to Welches, Oregon.
 Several of the Lettered Editions have been signed in blood and housed in metal traycases, in one example designed as a trailer complete with working interior lights.
 The main focus, however, of the press is the Novella Series, Novelette Series, and Chapbook Series.
 In recent years they have added the Steve Gerlach library, a project to publish his complete works which have been previously only available in his native Australia.
 Another project is the Jonathan Crowley Library which collects and keeps in print the genre work of James A. Moore.
 Bloodletting Press is also one of a few small presses that risks putting out new genre authors whose titles having been successful within this context go on to wider mass market publishers, such as "Rage", "Succulent Prey" and "The Rutting Season".
 In 2009, the Horror Writers Association awarded to Bloodletting Press its Specialty Press Award for their "outstanding design and production techniques" in publishing the "modern masters of the horror field".
Banana Boat is a Polish a cappella sextet, authoring and performing original songs representing the genre of neo-shanties.
 Being one of the pioneers of the new genre, the group retains its simultaneous focus on contemporary interpretations of traditional sea shanties and maritime music.
 Owing to its characteristic six-part, jazzy harmony, departing from the traditional sound of the music of the sea, the group has become one of the emblems of what the international artists of the maritime stage have informally come to dub as the "Polish style" maritime song.
 With maritime music constantly in the focus of its activity, since 2004, Banana Boat has also been experimenting with other musical genres, including popular and jazz compositions, inviting other artists to participate in individual projects.
 The group is a Member of International Seasong and Shanty Association (ISSA).
Diamond Head are an English heavy metal band formed in 1976 in Stourbridge, England.
 The band is recognised as one of the leading members of the new wave of British heavy metal movement and is acknowledged by thrash metal bands such as Metallica and Megadeth as an important early influence.
Reality Serum is a 2-man ‘Transurban’ band from Long Island, New York.
 'Transurban' is a new genre which is a unique blend of Alternative Hip Hop and guitar driven Pop Rock... fans of Twenty One Pilots, Die Antwoord, Muse (band), Rammstein, The Prodigy, Limp Bizkit, Linkin Park, Gary Numan, Mobb Deep, Cake, etc., will definitely be intrigued.
 Reality Serum consists of rapper/wordsmith Camanche and multi-instrumentalist/vocalist Twizle.
 After their initial emergence in the music scene, they have received high praise for their musical styling and individualistic sound.
 The band has released two full-length albums (pre-2013) and numerous singles (2013-present) on Supple Records, Inc.
Zone was an all-female pop rock band started in Sapporo, Japan in 1999.
 Although it initially started as a dance group, they turned to an all-female band.
 Zone has been categorized in a new genre called "bandol" (a portmanteau of the words band and idol).
 The band was started and managed by Studio RunTime and released their first single, "Good Days", under the major record label Sony Records, on February 7, 2001.
 The group has officially ended on March 2, 2013.