In Wizard of Oz, the Land of Oz is a magical place. But ever wonder where the name for the Land of Oz comes from? L. Frank Baum, who wrote the original book, invented the name "Oz" when looking at an alphabetical filing cabinet label, "O-Z." Crazy, but true! Imagine he glanced over at the "A-J" box instead? The Wizard of Aj just doesn't have the same ring!