Question: Which rock band was formed first: Vector or Coldplay?

Context articles: Gravity (Embrace song)
Coldplay
Chris Martin
Films of Colour
Life in Technicolor II
The Hardest Part (Coldplay song)
Something Just like This
Ghost Stories (Coldplay album)
Don't Panic (song)
Vector (band)

"Gravity" is the 2004 lead single from "Out of Nothing", the fourth album by English rock band Embrace.
 Written by Coldplay, the song was first performed live by that group in 2002.
 Ultimately, Coldplay frontman Chris Martin gave the song to Embrace, although Coldplay released their own version in 2005, as a B-side to the single "Talk".
Coldplay are a British rock band formed in 1996 by lead vocalist and keyboardist Chris Martin and lead guitarist Jonny Buckland at University College London (UCL).
 After they formed under the name Pectoralz, Guy Berryman joined the group as bassist and they changed their name to Starfish.
 Will Champion joined as drummer and backing vocalist, completing the lineup.
 Creative director Phil Harvey is often referred to as the fifth member by the band.
 The band renamed themselves "Coldplay" in 1998, before recording and releasing three EPs: "Safety" in 1998 and "Brothers & Sisters" and "The Blue Room" in 1999.
 "The Blue Room" was their first release on a major label, after signing to Parlophone.
Christopher Anthony John Martin (born 2 March 1977) is an English singer, songwriter, musician, record producer and philanthropist.
 He is best known as the lead singer and co-founder of the British rock band Coldplay.
 Born in Whitestone, near Exeter in Devon, Martin went to University College London where he formed a rock band with Jonny Buckland in 1996 called Pectoralz, which was eventually renamed Coldplay in 1998.
Films of Colour are an English alternative rock band, formed in 2008 at the Academy of Contemporary Music in Guildford, Essex, England.
 They originally started gigging under the name of Spires but as there were other bands already established by this name, they later changed their name to Films of Colour.
 After seeing them at their second gig, they were taken under the wing of Phil Catchpole (Relentless Records) where he developed their sound and put them in the studio and finally on tour with Cage the Elephant.
 Paul Carey joined the band as a Co-Manager in 2009, but when Phil Catchpole left in 2010, Paul Carey continued on and took command as their sole manager.
 On 4 October 2010, the band released their first single "Actions" with the B-side "Circles" (both produced/mixed by Duncan "Pixie" Mills (Florence and the Machine).
 The single was released digitally and on limited edition 7" Vinyl by Fierce Panda’s sister label – Label Fandango.
 The band's sound were compared to acts such as Radiohead, Muse, Coldplay, early Bloc Party and Swedish act – Miike Snow.
 Simon Williams, head of Fierce panda described the band "as the best band he's signed since Radiohead and Coldplay".
 Picked up as The Guardian’s New Band of the Day, Best of Myspace Winners, The Independent newspaper’s Barometer: One to Watch and Steve Lamacq’s Favourite New Band.
 There was radio support from 6 Music, Absolute Radio, BBC Radio 2 as well as holding the number 1 spot for two weeks on Amazing Radio
"Life in Technicolor II" (properly spelled and written as "Life in Technicolor ii"), is a song by British rock band Coldplay and the first single from the band's 2008 EP, "Prospekt's March".
 The song is the full, vocal version of the instrumental song "Life in Technicolor" from Coldplay's fourth studio album, "Viva la Vida or Death and All His Friends".
 A promo CD single for the song was released in December 2008.
 The official single was released on 2 February 2009 on 7" vinyl and digital download.
 The single includes the previously unreleased and unheard track "The Goldrush", one of the few Coldplay songs featuring lead vocals by drummer Will Champion.
 It was nominated for two Grammy Award for the 52nd Annual Grammy Awards; "Best Rock Performance by a Duo or Group with Vocal" and "Best Music Video".
"The Hardest Part" is a song by British rock band Coldplay.
 It was written by all four members of the band for their third album, "X&Y".
 A piano-based ballad song, it begins with a piano melody, followed with electric guitar lines, that accompanies slow-tempo drumming.
 It was released on 3 April 2006 as the fourth single from "X&Y".
 The song was released as a radio-only song on United Kingdom radio stations.
 It appeared on the United States "Billboard" Hot Adult Contemporary Tracks chart and peaked at number 37, making it Coldplay's first appearance on that chart and helping establish moderate success at AC radio for future singles like "Viva la Vida", "Paradise", and "Every Teardrop Is a Waterfall".
 "The Hardest Part" also charted in Australia, Italy and New Zealand.
"Something Just like This" is a song by American electronic music duo The Chainsmokers and British rock band Coldplay.
 It was released as the second single from The Chainsmokers' debut album "Memories...Do Not Open" on February 22, 2017 and as the first single from Coldplay's thirteenth extended play "Kaleidoscope" as the Tokyo Remix on June 23, 2017.
 The song was used as the theme for the 2017 NCAA Division I Men's Basketball Tournament.
 A live remix recorded in Tokyo of Coldplay's live version of the song was released on June 23, 2017.
Ghost Stories is the sixth studio album by British rock band Coldplay.
 Co-produced by the band with Paul Epworth along with returning "Mylo Xyloto" producers Daniel Green and Rik Simpson, it was released by Parlophone on 16 May 2014.
 The album was released by Atlantic Records in North America on 19 May 2014.
 It is the first album by the band in North America under Atlantic, after Coldplay were transferred from Capitol Records in 2013, following the purchase of EMI and its assets by the Universal Music Group in 2012.
"Don't Panic" is a song by the British rock band Coldplay.
 Originally titled "Panic", the earliest known version of the song existed in 1998, performed live during the band's first gig in the same year.
 It had a different melody, and was included in the band's second EP, "The Blue Room".
 The track was reproduced by Coldplay and British producer Ken Nelson for the band's debut album, "Parachutes".
Vector was a rock band formed in Sacramento, California in the early 1980s by Jimmy Abegg, Steve Griffith and Charlie Peacock.
 The band had several drummers over the years, including Aaron Smith and Bruce Spencer, both of whom also played drums for The 77s.