What are you interested in that would be considered "before your time" ?

People sometimes use that phrase as an excuse for their ignorance on certain subjects, I mean, WWII was way before my time, but I still know who started it!
I love old Harold Lloyd/Laurel & Hardy films, as well as Jimmy Cagney gangster movies. I like hearing about the history of warfare & iconic individuals of particular eras.
Such a wide canvas to paint on here, so how about you?