Conversation so far:
Where did Ramis attend school?
Ramis had begun studying and performing with Chicago's Second City improvisational comedy troupe.
Who did he perform with at Second City?
I had been in Second City in the workshops already and Michael Shamberg and I had written comedy shows in college".
What year(s) did he perform at Second City?
1968.
What did he do after Second City?
CANNOTANSWER.

Question: What else happened in 1968?
Self-contained rewrite: What else happened for Ramis in 1968 besides being in Second ity?