Conversation so far:
What year was Robert Maynard Hutchins Chancellor of the University of Chicago?
Robert Maynard Hutchins served as University of Chicago's Chancellor from 1945 until 1951.
Did Robert Maynard Hutchins pull any sports out of the University of Chicago's agenda?
Robert Maynard Hutchins eliminated the University of Chicago's football program, which he saw as a campus distraction.

Question: What collegiate conference of sports did he pull the university out of?
Self-contained rewrite: What collegiate conference of sports did Robert Maynard Hutchins pull the University of Chicago out of?