Look at the pinboard
This pinboard was in your room way before the tower was occupied. It was left by an ancient civilization who was studying this tower. It contains several paper prints that seem to relate to important events pertaining to the tower, in several different languages. It seems that the world they lived in was both more diverse and more connected than yours is, even though at least the latter is starting to change. Some threads are undone, you always wonder what it looked like when it had just been made.