Reading the newspaper really is educational! And I'm not talking about for just current events. No, you can learn all sorts of trivia from newspapers. In today's paper, I learned that there's a whole 'ology' devoted to studying flags. It's called vexillology, and from the quick little Google search I did on it, it's a Big Thing. There are whole associations devoted to studying flags of various types.
Never would have thought people would be so interested in flags to spend their time studying them.