Question: What band was formed earlier, Mercury Rev or Taking Back Sunday?

Context paragraphs:
Man Overboard (band): Man Overboard was an American pop punk band from Mt. Laurel and Williamstown, New Jersey that began in 2008.  Since then, they had released two EPs, an acoustic EP, a split with Boston pop punk band Transit, a compilation and four full-length albums.  Taking influence from such pop punk acts as Blink-182, Saves the Day and Taking Back Sunday, Man Overboard played a brand of upbeat and poppy pop punk with the emotion of 90s emo acts such as The Promise Ring.  The band was signed to Rise Records.  They are well known for their motto within the pop punk scene to "Defend Pop Punk".  On January 28, 2016 they announced a hiatus on their official website.

Mercury Rev: Mercury Rev is an American indie rock band formed in 1989 in Buffalo, New York.  Original personnel were David Baker (vocals), Jonathan Donahue (vocals, guitars), Sean Mackowiak, a.k.a. "Grasshopper" (guitars, clarinet), Suzanne Thorpe (flute), Dave Fridmann (bass) and Jimy Chambers (drums).

Tell All Your Friends: Tell All Your Friends is the debut studio album by American rock band Taking Back Sunday.  The group had several lineup changes before settling on vocalist Adam Lazzara, guitarist and vocalist John Nolan, guitarist Eddie Reyes, bassist Shaun Cooper, and drummer Mark O'Connell.  Taking Back Sunday released a five-song demo in early 2001, after which, they toured for most of the year.  They rented a room in Lindenhurst, New York, where they wrote and demoed songs.  In December 2001, the band signed with Victory Records and began recording "Tell All Your Friends".  The album, produced by Sal Villanueva, was recorded at Big Blue Meenie Recording Studio in New Jersey.

New Again: New Again is the fourth studio album by American rock band Taking Back Sunday.  When guitarist Fred Mascherino left the group after the Projekt Revolution tour ended in September 2007, band members took a break after years of touring.  "New Again" was recorded in October and November 2008 at several studios in New York and California with David Kahne and Matt Squire as producers.  Matthew Fazzi of Facing New York joined Taking Back Sunday in early 2008.  He was praised by vocalist Adam Lazzara and the group's manager for incorporating new instruments into the group's sound.  Guitarist Eddie Reyes called the album "one of the most aggressive records we've ever written".  Towards the end of 2008, the group revealed the album's title, went on a US tour, and made "Carpathia" available for streaming.

Taking Back Sunday (album): Taking Back Sunday is the fifth studio album by American rock band Taking Back Sunday.  After returning home from touring the Soundwave festival in February and March 2010, guitarist Matthew Fazzi and bassist Matthew Rubano left the group.  They were replaced by guitarist John Nolan and bassist Shaun Cooper, both of which were former members of the band.  Later in March, the band began writing material for their next album in El Paso, Texas.  The following month, demos were recorded with the aim to release a new album later in the year.  Recording began in October with producer Eric Valentine at Barefoot Recording in Hollywood, California and finished in January 2011.

Dreams of Water: Dreams of Water is the debut album of the California/New York rock group Happy Body Slow Brain, which was formed by ex-Taking Back Sunday guitarist Matthew Fazzi and touring guitarist Isaac Bolivar.  The idea for the album began as a side-project of Fazzi's during his tenure with Taking Back Sunday, however after parting ways with the band in March 2010, Fazzi began to focus all his energy on Happy Body Slow Brain.

Taking Back Sunday: Taking Back Sunday is an American rock band from Long Island, New York.  The band was formed by guitarist Eddie Reyes in 1999.  The band's members are Adam Lazzara (lead vocals), John Nolan (lead guitar, keyboards, vocals), Eddie Reyes (rhythm guitar), Shaun Cooper (bass guitar) and Mark O'Connell (drums).

Terrible Things: Terrible Things is an alternative rock band initially formed in 2009 by Fred Mascherino, formerly of Taking Back Sunday, Andy Jackson of Hot Rod Circuit, and Josh Eppard, from Coheed and Cambria.  The group released a self-titled album on August 31, 2010.  The debut album was produced by Jason Elgin and centered on an outbreak of arson events in member Fred Mascherino's birthplace, Coatesville, Pennsylvania.  The album was released on Universal Records and debuted at #25 on the Billboard Heatseekers chart.

Holes (Mercury Rev song): "Holes" is the fourth single from Mercury Rev's fourth studio album, "Deserter's Songs".  The single was released in Australia only as a limited edition tour EP on July 7, 1999, although promotional CD singles were distributed to UK radio stations in 2006 (to coincide with the release of the Mercury Rev collection "").  The tour single included a live cover of "Caroline Says Pt.  II" (Lou Reed) and featured Robert Creeley reading his poem "I Dreamt" over a Mercury Rev soundtrack.

List of Taking Back Sunday band members: Taking Back Sunday is an American rock band from Long Island, New York, formed in 1999 and featuring the current line-up of Adam Lazzara (lead vocals), John Nolan (lead guitar, keyboards, vocals), Eddie Reyes (rhythm guitar), Shaun Cooper (bass guitar), and Mark O'Connell (drums, percussion), accompanied on tour by Nathan Cogan (guitars, keyboards).  The group was originally formed by Antonio Longo, John Nolan, Eddie Reyes, Jesse Lacey, and Steven DeJoseph.  The band has gone through multiple line-up changes in their career spanning seven studio albums.  There have been eleven official members of Taking Back Sunday, four touring members, and twenty-three session members.

Supporting paragraphs: Mercury Rev Taking Back Sunday
Answer: Mercury Rev