In Hungary, Lajos Kossuth led a national revolt against Habsburg rule; in Transylvania, Avram Iancu led successful revolts in 1846. The 1848 crisis had given nationalism its first full public airing, and in the thirty years that followed no fewer than seven new national states were created in Europe. This was partly the result of the recognition by conservative forces that the old order could not continue in its existing form. Conservative reformers such as Cavour and Bismarck made common cause with liberal political modernizers to create a consensus for the creation of conservative nation-states in Italy and Germany. In the Habsburg Monarchy a compromise was reached with Hungarians in 1867 which led to the establishment of the Dual Monarchy. Native history and culture were rediscovered and appropriated for the national struggle. Following a conflict between Russia and Turkey, the Great Powers met at Berlin in 1878 and granted independence to Romania, Serbia and Montenegro and limited autonomy to Bulgaria.