The Donald Duck universe is a fictional shared universe which is the setting of stories involving Disney cartoon character Donald Duck, as well as Huey, Dewey, and Louie, Scrooge McDuck, and many other characters. The world is a spin-off of the older Mickey Mouse universe, yet has become much more extensive. Life in the Donald Duck universe centers on the city of Duckburg, usually located in the fictional U.S. state of Calisota, analogous to Northern California. The world also incorporates several other real and fictional locations, as well as historical figures and a fictional timeline, which is followed by varying degrees of consistency.