Conversation so far:
Who were Chicago's original members?
The group now known as Chicago began on February 15, 1967, at a meeting involving Walter Parazaider, Terry Kath, Danny Seraphine, James Pankow, Lee Loughnane, and Robert Lamm.
Who did Chicago perform for first?
The band Chicago performed on a regular basis at the Whisky a Go Go nightclub in West Hollywood.
When did Chicago record their first album?
The band Chicago's self-titled debut album, Chicago Transit Authority (as they were known then as), was recorded recorded January 27–30, 1969, and released April 28, 1969.

Question: What did it make it to?
Self-contained rewrite: What did the album Chicago Transit Authority make it to on the charts?