Question: Which band formed first: Big Country from Scotland, or Argentina's Soda Stereo?

Context paragraphs:
Cuando pase el temblor: "Cuando pase el temblor" (Spanish for "When the earthquake ends" or "When the tremor ends") is a rock song by Argentine rock band Soda Stereo featured as the second track on the 1985 "Nada personal" album.  After being released in October 1985, "Cuando pase el temblor" became one of Soda Stereo's better known songs together with "De música ligera".  "Cuando pase el temblor" is one of Soda Stereo's few songs to feature elements of Andean music, in this case panflutes.

Big Country: Big Country is a Scottish rock band formed in Dunfermline, Fife, in 1981.

Zona de Promesas: Zona de Promesas: mixes 1984-1993 (Spanish for "Zone of Promises") is an album recorded by Argentine rock band Soda Stereo.  Their tenth album was released by Sony Music Entertainment in 1993.  The album is composed of a series of remixes recorded by Soda Stereo that range between 1984 and 1993 and "Zona de promesas", a track left in the cutting room of the band's previous album, "Dynamo".  This was the last album released through the Sony label.

De Música Ligera: "De Música Ligera" (Spanish for "Of easy-listening music") is a song by the Argentine rock band Soda Stereo from their fifth studio album Canción Animal (1990).  It is one of Soda Stereo's most famous and symbolic songs, whose musical influence has been remarkable in the history of Latin rock for over two decades.  Due to its popularity, the song is considered a hymn of rock en español.

Soda Stereo: Soda Stereo was an Argentine rock band created in Buenos Aires in 1982 by the power trio made up of Gustavo Cerati (lead vocals, guitars), Héctor "Zeta" Bosio (bass), and Charly Alberti (drums).  Considered one of the most influential and important Latin American bands of all time and a legend of Latin music.  It achieved international success throughout the 1980s and 1990s, playing a pivotal role in the surfacing, development and dissemination of Latin and Ibero-American rock outside Argentina.  They were the first Latin rock group to achieve success throughout Hispanic America.

Sueño Stereo: Sueño Stereo (Spanish for "Stereo Dream") is the seventh and final studio album recorded by Argentine rock band Soda Stereo.  It was released by BMG Argentina in 1995.  It is considered one of the most important alternative rock records in Spanish and one of the best, most successful and most important by the band and all Latin rock. " Rolling Stone" considered it the fourth-best of Latin rock history.

Canción Animal: Canción Animal (Spanish for "Animal Song") is the fifth album released by the Argentine rock band Soda Stereo, released in August of 1990 (see 1990 in music).  Many of the songs on the album are among the band's most popular, such as one of their biggest hits ""De Música Ligera"", the last song played in Soda Stereo's last concert in 1997, "Hombre al agua", "Un Millón de Años Luz", "Te para tres" and others.  It is considered one of the best and most influential albums in the history of Latin American rock music.  For many people, it's regarded as the best album to ever come out of South America.

Soda Stereo (album): Soda Stereo is the debut album recorded by Argentine rock band Soda Stereo, released in 1984 and produced by Federico Moura, then leader of Virus.  It was remastered in 2007 at Sterling Sound Studios in New York.

Tributo a Soda Stereo: Tributo a Soda Stereo Is a 2001 album tribute to the Argentinian rock band Soda Stereo.

Ella usó mi cabeza como un revólver: Ella usó mi cabeza como un revólver (Spanish for "She used my head as a revolver") is a song by Argentine rock band Soda Stereo featured as the first track on the Sueño Stereo album of 1995.  After being released in 1995 "Ella usó mi cabeza como un revólver" became one of Soda Stereo's better known songs together with "De Música Ligera".  Within 15 days after release the song became a certified platinum in Latin America.

Supporting paragraphs: Big Country Soda Stereo
Answer: Big Country