Conversation so far:
How did Magic Johnson's rivalry with Larry Bird start?
Magic Johnson and Larry Bird were first linked as rivals after Johnson's Michigan State squad defeated Bird's Indiana State team.
When did Magic Johnson's Michigan State squad defeat Larry Bird's Indiana State team?
Magic Johnson's Michigan State squad defeated Bird's Indiana State team in the 1979 NCAA finals.

Question: Did they argue?
Self-contained rewrite: Did Magic Johnson and Larry Bird argue about the 1979 NCAA finals?