Question: When was the album of Irish rock band U2 released by Jamaican-British record label that operates as a division of Universal Music Group (UMG)?

Island Records is a Jamaican-British record label that operates as a division of Universal Music Group (UMG).  It was founded by Chris Blackwell, Graeme Goodall and Leslie Kong in Jamaica in 1959.  Blackwell sold the label to PolyGram in 1989.  Both Island and another label recently acquired by PolyGram, A&M Records, were both at the time the largest independent record labels in history, with Island in particular having exerted a major influence on the progressive UK music scene in the early 1970s. <SEP> Universal Republic Records was an American record label, that operated as a division of Universal Music Group.  It was based on the then-defunct Republic Records label founded by brothers Monte and Avery Lipman.  In the summer of 2011, changes were made at one of the three Universal Music Group umbrella labels, Universal Motown Republic Group, and Motown Records was separated from Universal Motown Records (causing it to shut down and transfer its artists to either Motown Records or Universal Republic Records) and the umbrella label and merged into The Island Def Jam Music Group, making Universal Republic Records a stand-alone label and shutting down Universal Motown Republic Group.  In mid-2012, the label reverted to its original Republic Records name, making this label defunct. <SEP> Capitol Records, LLC (also referred to simply as Capitol and Hollywood and Vine) is an American major record label which operates as a division of the Capitol Music Group.  The label was founded as the first West Coast-based record label in the United States in 1942 by industry insiders Johnny Mercer, Buddy DeSylva and Glenn E. Wallichs.  In 1955, the label was acquired by the British music conglomerate EMI as its North American subsidiary.  EMI was later acquired by Universal Music Group in 2012 and was merged with the company in 2013, making Capitol Records and the Capitol Music Group both a part of the Universal Music Group.  Capitol Records' circular headquarter building located in Hollywood, Los Angeles is a recognized landmark of California.  s of 2017 , artists signed to Capitol Records include Paul McCartney, Mary J. Blige, the Beach Boys, the Beastie Boys, Neil Diamond, Eagles, Katy Perry, Brian Wilson, Beck, Avenged Sevenfold, 5 Seconds of Summer, Don Henley, Sam Smith, Emeli Sandé, Troye Sivan, Tori Kelly, and Niall Horan. <SEP>  It was produced by Brian Eno and Daniel Lanois, and released on 1 October 1984 by Island Records. The Unforgettable Fire is the fourth studio album by Irish rock band U2.  The band wanted to pursue a new musical direction following the harder-hitting rock of their 1983 album, "War".  As a result, they employed Eno and Lanois to produce and assist in their experimentation with a more ambient and abstract sound.  The resulting change in direction was at the time the band's most dramatic.  The album's title is a reference to "The Unforgettable Fire"—an art exhibit about the atomic bombing of Hiroshima.  The band saw the exhibit in November 1983 in Japan while on the "War" Tour.