The Tragedy of Tirath
Gnomes have no cities of their own, tending to wander freely and settle where they feel like, usually for fairly short periods of time. Never more often than once a year, but sometimes as seldom as once in ten years gnomes congregate together at a seemingly random location in the wilderness. These gathering seem to be entirely spontaneous, and yet a vast majority of the gnomes unerringly find their way to the gathering nearly at the same time and always in a different place. Non-gnomes are not invited to these gatherings although they are not barred completely, and no outsiders have ever been able to figure out how or why these gatherings are organized. There is still some lingering resentment among gnomes that they were forced to flee to this realm of existence and rumor has it there are groups working on a return to the fey realm.