Yugoslav federalism does not begin with the federal constitution adopted eight years ago. Federal ideas among the South Slavs followed the stirrings of nationalism and the struggle for independence at the end of the eighteenth and early in the nineteenth century as the logical solution for a situation in which the various tribes wished to be united but not unitary.
With the exception of the Serbian Highlanders in Montenegro, who had been enjoying a precarious independence since 1697, the South Slav tribes were divided between the multi-national Ottoman and Hapsburg Empires. They generally showed little political consciousness either as separate tribes or as members of the Slav family. The first integrating movement among them began in the last three decades of the eighteenth century in the shape of vague Pan-Slav ideas stimulated by the Russian advance towards the Balkans. Pan-Slavism appealed both to many South Slav intellectuals and to the illiterate masses, but was too vague and too weak to counteract the various religious, linguistic, political, and historical differences among the tribes. Moreover, the relations between the three major tribes were disturbed by violent territorial disputes: Macedonia was the bone of contention between the Serbs and the Bulgarians, while Bosnia and Herzegovina were disputed by the Serbs and the Croats.