Question: Which band formed earlier, Lilys or Tomahawk?

Context articles: Swingtips
Skeletal Family
Helmet discography
Tomahawk (band)
Hecate Enthroned
Space Age Playboys
Shrapnel (US punk band)
Lilys
Terry Knight and the Pack
Steve Miller Band

The Swingtips, is a band formed in 1995 from Phoenix, Arizona.
 Credited as "one of the earlier riders of the swing band revival" and an influential part of the swing revival movement in general, the Swingtips was founded by Kregg Barentine, who toured with the Glenn Miller Orchestra in 1993-1994, and by Paul Maranto, a Phoenix dance instructor and guitar player.
 Originally called "The Wingtips", the band changed its name to the Swingtips and within the first year, co-founder, Paul Maranto, left the band.
 Barentine's original compositions helped define the era with such notable songs as "Checkbook Daddy-O", "The Business End Of The Barrel", "Let's Play Some Ball", "Santa Swings", "Roswell", and "Sam The Clam", many of which appeared on numerous CD compilations during the late 1990s and well into 2000.
Skeletal Family are an English gothic rock band formed in Keighley, West Yorkshire, in December 1982.
 The band was formed from the remaining members of an earlier group called the Elements, and took their name from the title of the song "Chant of the Ever Circling Skeletal Family" from the 1974 David Bowie album, "Diamond Dogs".
The discography of Helmet, a New York-based alternative metal band formed in 1989, consists of eight full-length studio albums, two compilation albums, fifteen singles, and fourteen music videos.
 This list does not include material performed by members or former members of Helmet that was recorded with Adair, Anthrax, Band of Susans, Biohazard, The Cult, Disturbing the Peace, Exodus, Norma Jean, Testament, Tomahawk and White Zombie.
Tomahawk is an American rock supergroup.
 They formed in 1999 when Fantômas, ex-Mr. Bungle and Faith No More singer/keyboardist Mike Patton and ex-The Jesus Lizard guitar player Duane Denison started swapping tapes with the intention of collaborating.
 Denison then recruited ex-Helmet drummer John Stanier, while Patton recruited then-Melvins/ex-Cows bass player Kevin Rutmanis into the group.
Hecate Enthroned is a British symphonic black/death metal band formed and based in Wrexham, Wales.
 They formed in 1993 as a blackened death metal act under the name Amethyst, changing their name to Daemonum later on.
 In 1995 the band changed its name to their current one and embraced a symphonic black metal style that was constantly compared to early Cradle of Filth, although since 1999 their work has strayed from their earlier symphonic black metal style and has incorporated more elements of melodic death metal.
Space Age Playboys was a band formed by former Warrior Soul lead singer Kory Clarke, named after that band's final album before their 1995 break up.
 Based in Los Angeles, the band was active from 1997-2000, releasing one studio and one live album, touring Europe twice and the USA once.
 Following from the name given Warrior Soul's style since their album Chill Pill, the band was referred to as an "acid punk" band, but critics also noted a shift in lyrical focus from Clarke's earlier, darker, more political work to a focus on party anthems and drugs.
Shrapnel was an American punk band formed in Red Bank, New Jersey in the late-1970s.
 The group was a concept band whose members wore military uniforms onstage.
 The band's aesthetic included glorification of war, carrying prop M16 rifles onstage, and stances criticizing earlier anti-Vietnam War sentiment: " Hey, you asshole creep, I bet you were against the war."
 The band was criticized, including labeled as "proto-fascist", for its provocative antics, with songs such as "Hey Little Gook".
Lilys are an American indie rock band formed in Washington, D.C in 1988.
 The only constant member is Kurt Heasley, with the line-up changing regularly.
 Several of the band's tracks have been used in television advertisements, and the band's biggest hit was one of these, "A Nanny In Manhattan", which reached No. 16 in the UK after being used in a Levi's advertisement directed by Roman Coppola.
Terry Knight and the Pack (earlier known as the Pack) was an American garage rock band formed in Flint, Michigan in 1965.
 The band was signed to the Lucky Eleven label throughout most of its short recording career, and they produced one national hit with their cover version of the song, "I (Who Have Nothing)".
 Despite their inability to replicate their success, the band was still a frequent attraction in the Michigan rock scene.
 The Pack was fronted by singer, Terry Knight.
 In 1967, the group disbanded, but two of the members of the band, drummer/vocalist Don Brewer and guitarist Mark Farner, would later go on to form another band, Grand Funk Railroad.
The Steve Miller Band is an American rock band formed in 1966 in San Francisco, California.
 The band is led by Steve Miller on guitar and lead vocals.
 It is best known today for a string of (mainly) mid-1970s hit singles that are staples of classic rock radio, as well as several earlier acid rock albums.
 Miller left his first band to move to San Francisco and form the Steve Miller Blues Band.
 Shortly after Harvey Kornspan negotiated the band’s landmark contract with Capitol Records in 1967, the band shortened its name to the Steve Miller Band.
 In February 1968, the band recorded its debut album, "Children of the Future".
 It went on to produce the albums "Sailor", "Brave New World", "Your Saving Grace", "Number 5", "Rock Love" and more.
 The band's "Greatest Hits 1974–78", released in 1978, sold over 13 million copies.
 The band continued to produce more albums and in 2014 toured with the rock band Journey.
 In 2016, Steve Miller was inducted as a solo artist in the Rock and Roll Hall of Fame.