Thinking back on the experience, it was incredible. I could go grab a copy of a newspaper from any particular day in any year. I remember reading the actual newspapers from the early 20th century. Big historical events that are in history books, really take on a different meaning to you when you read them as they were reported in near-real-time. The ability of microfilm to snapshot history in a way different than say viewing a jpg or png, is fascinating.
If you are ever bored, and can find a library that will give you access, you should definitely check it out. It's an experience I think all hackers should have. Such simple yet powerful machines, built on a highly non-technical system of convention. Very cool. Sorry for the long walk down nostalgia lane.