This is a handy idea. Handier than a bulletin board, anyway.
My name is Aiden Shepard. I've just moved into apartment 307. I'm a historical and philosophical scholar, so I'm going to regret this but if you're in a life-or-death situation and desperately need to know the political state of almost any part of Europe at any point in time after about 1,000 BCE, leave me a note and I'll see if I can find an answer. Though I can't guarantee I'll actually get back to you since I have an unbelievable amount of unpacking to do.