Conversation so far:
Did the band reunite during this time frame?
In 1990, the former line-up of van Leer, Akkerman, van der Linden, and Ruiter reunited for the first time since 1975.

Question: Did anything particular happen during the reunion?
Self-contained rewrite: Did anything particular happen during the reunion of van Leer, Akkerman, van der Linden and Ruiter?