In today's Germany, the Danes, Frisians, and Slavic Sorbs are classified as traditional ethnic minorities and are guaranteed cultural autonomy by both the federal and state governments. There is a treaty between Denmark and Germany from 1955 regulating the status of the German minority in Denmark and vice versa. The north German state of Schleswig-Holstein has passed a law aimed at preserving the Frisian language.[72] The cultural autonomy of the Sorbs is enshrined in the constitutions of both Saxony and Brandenburg.