Seussville was first created to be a land to hold all of Dr. Seuss' goo. He simply has so much goo, it was threatening to destroy the world. He created this dimension to store all of the goo. After this crisis had been solved, Dr. Seuss took a nap, hoping he would never have to put anything in Seussville again. He decided to ignore the fact that the goo needed to be refrigerated after opening. Seussville was the home to over 5,000 different creatures of various sorts. Some of them are very odd indeed. In fact, one of them even has a mustache.