1848 in Germany later became widely known as the Vormärz, the "before March", referring to March 1848. During this period, European liberalism gained momentum; the agenda included economic, social, and political issues. Most European liberals in the Vormärz sought unification under nationalist principles, promoted the transition to capitalism, sought the expansion of male suffrage, among other issues. Their "radicalness" depended upon where they stood on the spectrum of male suffrage: the wider the definition of suffrage, the more radical. The surge of German nationalism, stimulated by the experience of Germans in the Napoleonic period and initially allied with liberalism, shifted political, social, and cultural relationships within the German states. In this context, one can detect its roots in the experience of Germans in the Napoleonic period. Furthermore, implicit and sometimes explicit promises made during the German Campaign of 1813 engendered an expectation of popular sovereignty and widespread participation in the political process, promises that largely went unfulfilled once peace had been achieved. Emergence of liberal nationalism and conservative response Despite considerable conservative reaction, ideas of unity joined with notions of popular sovereignty in German-speaking lands. The Burschenschaft student organizations and popular demonstrations, such as those held at Wartburg Castle in October 1817, contributed to a growing sense of unity among German speakers of Central Europe. At the Wartburg Festival in 1817 the first real movements among the students were formed - fraternities and student organizations emerged. The colors black, red and gold were symbolic of this. Agitation by student organizations led such conservative leaders as Klemens Wenzel, Prince von Metternich, to fear the rise of national sentiment. The assassination of German dramatist August von Kotzebue in March 1819 by a radical student seeking unification was followed on 20 September 1819 by the proclamation of the Carlsbad Decrees, which hampered intellectual leadership of the nationalist movement. Metternich was able to harness conservative outrage at the assassination to consolidate legislation that would further limit the press and constrain the rising liberal and nationalist movements. Consequently, these decrees drove the Burschenschaften underground, restricted the publication of nationalist materials, expanded censorship of the press and private correspondence, and limited academic speech by prohibiting university professors from encouraging nationalist discussion. The decrees were the subject of Johann Joseph von Görres's pamphlet Teutschland [archaic: Deutschland] und die Revolution (Germany and the Revolution) (1820), in which he concluded that it was both impossible and undesirable to repress