 During the Yugoslav period, a Yugoslav identity (the "Yugoslav nation", "Jugoslovenska nacija") was propagated.Processes such as the Rise of nationalism in Europe, Rise of nationalism in the Ottoman Empire, Italian unification, and German unification were events in the 19th century and reflected among the South Slavs, too, as their shared mother tongues all belong to a family of closely related languages.This, along with their shared history, prompted some to demand a South Slav unification akin to that which occurred for the Italians and Germans; but here there were greater political obstacles as there was no sovereign South Slav state until the end of the Serbian Revolution (with the South Slav peoples being in the Ottoman and Habsburg realms), and it was only with the end of the First World War that the better developed Croatia and Slovenia broke from Habsburg and German rule.