OK, do you know? Is it important for her to know?
James Fallows--for a couple of decades one of the best commentators on international affairs--explains why it is:
Each of us has areas we care about, and areas we don't. If we are interested in a topic, we follow its development over the years. And because we have followed its development, we're able to talk and think about it in a "rounded" way....You can see where he's going, but read the whole piece.
Here's the most obvious example in daily life: Sports Talk radio....
Mention a name or theme -- Brett Favre, the Patriots under Belichick, Lance Armstrong's comeback, Venus and Serena -- and anyone who cares about sports can have a very sophisticated discussion about the ins and outs and myth and realities and arguments and rebuttals.
People who don't like sports can't do that. It's not so much that they can't identify the names -- they've heard of Armstrong -- but they've never bothered to follow the flow of debate.