Conversation so far:
What is one of Danny Glover's beliefs on civil rights?
Danny Glover has gained respect for his wide-reaching community and labor activism with an emphasis on advocacy for economic justice and access to health care and education programs.
Did Danny Glover attend protests?
Danny Glover was a member of the Black Students' Union while attending SFSU and collaborated in a five-month student-led strike.
What was the five-month student-led strike at SFSU against?
The five-month student-led strike was to establish a Department of Black Studies at SFSU. The strike was the longest student walkout in U.S. history.

Question: What other activism was he involved in?
Self-contained rewrite: What other activism was Danny Glover involved in besides the strike at SFSU?