The Austro-Hungarian Empire (1867–1918) was a multinational pressure cooker. These groups demanded autonomy or independence:
| Group | Core Territory | Autonomy Milestone | Outcome |
|---|---|---|---|
| Hungarians (Magyars) | Pannonian Basin | 1867 Compromise (Ausgleich) | Dual Monarchy; full independence 1918 |
| Czechs | Bohemia, Moravia | 1918 Czechoslovak declaration | Czechoslovakia; split 1993 |
| Poles | Galicia | 1918 Polish liquidation commission | Second Polish Republic |
| Italians (South Tyrol/Trentino) | Tyrolean Alps, Adriatic coast | 1866 Venice; 1918 South Tyrol | Kingdom of Italy; South Tyrol autonomy 1972 |
| Romanians (Transylvania/Bukovina) | Carpathian arc | 1859 Principalities union; 1918 Alba Iulia | Greater Romania; lost N. Bukovina 1940 |
| Serbs (Vojvodina/Bosnia) | Pannonian fringe, Dinaric Alps | 1878 Berlin Congress; 1918 unification | Yugoslavia; now Serbia, Croatia, BIH |
| Slovaks | Upper Hungary | 1918 Martin Declaration | Czechoslovakia → Slovakia 1993 |
| Slovenes | Carniola, Styria, Carinthia | 1918 State of SHS | Yugoslavia → Slovenia 1991 |
| Croats | Croatia, Slavonia, Dalmatia | 1868 Nagodba (compromise) | Yugoslavia → Croatia 1991 |
| Ruthenians/Ukrainians | Eastern Galicia, Carpatho-Ruthenia | 1918 West Ukrainian Republic | Absorbed by Poland/USSR; now Ukraine |
National self-determination (Wilson's 14 Points) + military defeat (1918) = empire dissolved into nation-states. The "autonomy" demands were never fully satisfied within the imperial framework—only independence worked.