With the 49ers back in the Super Bowl for the first time in 18 seasons, it's time to get some perspective on where the franchise has been and how it reached the big game in New Orleans. Here's a conversation with Chris Willis, the head of the research library at NFL Films who is writing a book on 49ers history. He discusses the transfer of power from owner John York to his son Jed York, similarities between Jim Harbaugh and Bill Walsh aside from both coming directly from Stanford to the 49ers, and much more:

This text will be replaced