Question: Which band was formed first, Jack's Mannequin or Chvrches?

Context paragraphs:
Japp–Maitland condensation: The Japp–Maitland condensation is an organic reaction and a type of Aldol reaction and a tandem reaction.  In a reaction between the ketone 2-pentanone and the aldehyde benzaldehyde catalyzed by base the bis Aldol adduct is formed first.  The second step is a ring-closing reaction when one hydroxyl group displaces the other in a nucleophilic substitution forming an oxo-tetrahydropyran.

Primary rock: Primary rock is an early term in geology that refers to crystalline rock formed first in geologic time, containing no organic remains, such as granite, gneiss and schist as well as igneous and magmatic formations from all ages.  Webster's Revised Unabridged Dictionary published in 1913 provides the following term as used in geology:

Chvrches: Chvrches (pronounced and written as "churches" in Roman form and stylised as CHVRCHΞS) are a Scottish synth-pop band from Glasgow, formed in September 2011.  The band consists of Lauren Mayberry (lead vocals, drums, additional synthesisers, samplers), Iain Cook (synthesisers, guitar, bass, vocals) and Martin Doherty (synthesisers, samplers, vocals).

SV St. Georg: SV St. Georg Hamburg is a German association football club playing in Hamburg.  The club was established 3 June 1895 and shares a common origin with "FC Hammonia Hamburg": both sides arose out of the students group Seminarvereinigung Frisch-Auf with "St. Georg" being formed first on the left bank of the Alster River, and "Hammonia" appearing later on the right bank.  Like their brother side, "St. Georg" was a founding member of the German Football Association (Deutscher Fussball Bund or German Football Association) at Leipzig in 1900.  However, while "Hammonia" folded after only a short existence, "St. Georg" still plays today.

Live from the El Rey Theatre: Live from the El Rey Theatre is a live music CD and DVD by the band Jack's Mannequin.  It was recorded on November 11 and November 12 of 2012 at the El Rey Theatre in Los Angeles, California.  The November shows were advertised as the final Jack's Mannequin shows ever as Andrew McMahon decided to close the chapter on his moniker and reboot his career as a solo artist.  The shows coincided with the 3rd annual benefit for the Dear Jack Foundation, McMahon's charitable organization that raises awareness for young adult cancer.  All profits from the album went to benefit the foundation.

Konstantin Vakulovsky: Captain Konstantin Konstantinovich Vakulovsky (born 28 October 1894, died Summer 1918) was a World War I flying ace credited with six aerial victories.  A major general's son, he volunteered for aviation duty on 8 August 1914, six days after graduating from university.  He taught himself to fly, and became one of Russia's first military pilots on 13 June 1915.  After escaping the fall of the Novogeorgievsk Fortress in a hazardous flight, Vakylovsky flew reconnaissance missions, some through heavy ground fire.  Given command of the newly formed First Fighter Detachment, he became a flying ace credited with six aerial victories.  He died in a flying accident during Summer 1918.

Harris, Forbes &amp; Co.: Harris, Forbes & Co. was an investment banking affiliate of Harris Bank incorporated in 1911.  Harris, Forbes firm was acquired by Chase Manhattan Bank in 1930 to form Chase Harris, Forbes.  Just two years later, in 1932, the firm was dissolved after the passage of the Glass–Steagall Act in 1932.  Chase transferred what remained of its securities business to the Bank of Boston's newly formed First Boston Corporation, buttressing that firm's early municipal bond department.

Jack's Mannequin: Jack's Mannequin was an American rock band formed in 2004, hailing from Orange County, California.  The band originally began as a solo project for Andrew McMahon, the frontman of Something Corporate.

Fino + Bleed: Fino + Bleed is a studio album by the Canadian punk rock band Die Mannequin, released on September 8, 2009.  "Fino + Bleed" is Die Mannequin's first true studio album because their previously released studio album "Unicorn Steak" is a compilation of their first two EPs, "How To Kill" and "Slaughter Daughter".  There is also a deluxe CD/DVD version of the album with the DVD containing the Bruce McDonald directed "The Raw Side of…Die Mannequin".  The original release date was set for August 25, 2009 but was pushed back to September 8, 2009 in order to accommodate the addition of the documentary.

Chvrches discography: Scottish synthpop band Chvrches have released two studio albums, three extended plays (EPs), 14 singles, one promotional single and 11 music videos. Chvrches was formed in Glasgow in 2011 and consists of Lauren Mayberry (lead vocals, additional synthesisers, samplers), Iain Cook (synthesisers, guitar, bass, vocals), and Martin Doherty (synthesisers, samplers, vocals).

Supporting paragraphs: Jack's Mannequin Chvrches
Answer: Jack's Mannequin