Conversation so far:
What year did the band begin?
Keenan and Jones met through a mutual friend in 1989.
Who were some band members?
Tool's lineup was completed when a friend of Jones introduced them to bassist D'Amour.
how did they get the band name?
Keenan later explained their intentions differently: "Tool is exactly what it sounds like: It's a big dick.
It's a wrench.
...
we are ...
your tool.

Question: what was their first album?
Self-contained rewrite: what was Tool's first album?