How Many Miles to Babylon? In the 1824 edition of "The Scottish Gallovidian Encyclopedia" there's a description of the rhyme and the game, giving the distance as "six, seven or a lang eight". The rhyme was originally accompanied by a singing game in which two lines face each other, with one player in the middle. At the end of the rhyme the players have to cross the space and any caught help the original player in the middle catch the others. The game seems to have fallen out of use in the twentieth century. In literature In film In music How Many Miles to Babylon?
Category of small categories Category of small categories In mathematics, specifically in category theory, the category of small categories, denoted by Cat, is the category whose objects are all small categories and whose morphisms are functors between categories. Cat may actually be regarded as a 2-category with natural transformations serving as 2-morphisms. The initial object of Cat is the "empty category" 0, which is the category of no objects and no morphisms. The terminal object is the "terminal category" or "trivial category" 1 with a single object and morphism. The category Cat is itself a large category, and therefore not an object of itself.