Short answers, pulled from the story.
Chicago was formed on the 15th of February 1967 in Chicago, Illinois. The founding members first gathered at a meeting that included Walter Parazaider, Terry Kath, Danny Seraphine, James Pankow, Lee Loughnane, and Robert Lamm, with Peter Cetera joining later that year.
Chicago has sold more than 100 million records worldwide. In the United States alone, the band has sold over 40 million units, with 23 gold, 18 platinum, and eight multi-platinum albums certified by the RIAA.
Chicago won the Grammy Award for Best Pop Vocal Performance by a Duo, Group or Chorus in 1976 for the song "If You Leave Me Now", presented at the 19th Annual Grammy Awards held on the 19th of February 1977. The band also received a Grammy Lifetime Achievement Award on the 16th of October 2020.
Terry Kath died on the 23rd of January 1978 from an accidental, self-inflicted gunshot wound from a gun he believed was unloaded. Doc Severinsen, then bandleader for The Tonight Show Starring Johnny Carson, visited the group after Kath's funeral and encouraged them to continue performing.
Chicago 17, released in 1984, is the biggest-selling album in the band's history. It was certified six times multi-platinum by the RIAA in 1997 and produced two top-three singles, "You're the Inspiration" and "Hard Habit to Break".
The Chicago logo was designed by John Berg, art director of Columbia/CBS Records, with the lettering rendered by Nick Fasciano. Berg drew inspiration from the design of the Coca-Cola logo, the character of the city of Chicago, and the desire to represent the band as a collective rather than individual members.