"Nostalgia" - Homesick

From Webster's : nostalgia - 1. The state of being homesick : Homesickness

I think this one is self-explanatory, that photo album is full of pictures from the last few years. When I get homesick it's what I turn to, to keep me from going mad. Did you know that 'nostalgia' was actually a reason for discharge from the military all the way up until the end of World War II??