Indeed this is one of the things I most enjoyed when I first visited DC, the realization of just how recent these historical events really were. Standing on a battlefield in Gettysburg and thinking "This all happened in the 1860s, barely more than 100 years before I was born. I have relatives who lived in this area at that time, and only a few generations back."

When I talk to young people today, and realize how little they know about people and events that were major news when I was young, I understand how it happens. Even for me WW2 is just something from the history books, and yet it concluded just ~30 years before I was born. 30 years before today was 1996.

Our descendants are going to enjoy an enormous wealth of imagery and videos for events that will to them otherwise be just something from a history book. Just imagine what it would be like today if we could see videos of George Washington and Abraham Lincoln, etc. Might knock the mythology down a peg or two, though.