Linden's Revised System of Classification, also known as the "Categoric-Gradial System of Classification", is another way of classifying the potential and importance of micronations. It was revised by its creator on December 27, 2011, to more accurately adapt to the changes in the view of "success" in micronational terms that had occurred since the original conception of the system. As its alternate name says, it works with Categories and Gradients, exactly five of each. A specialty of this classification is that it automatically classifies all micronations whose main claims are not on Earth as "0".