What happened first, the release of Zooropa or Zoo TV Tour?
Zooropa: Zooropa is the eighth studio album by Irish rock band U2. Zooropa:  Produced by Flood, Brian Eno, and The Edge, it was released on 5 July 1993 on Island Records. Zoo TV Tour: The Zoo TV Tour (also written as ZooTV, ZOO TV or ZOOTV) was a worldwide concert tour by rock band U2. Zoo TV Tour:  Staged in support of their 1991 album "Achtung Baby", the tour visited arenas and stadiums from 1992 to 1993.
i don't know