socialist state was established, but because of the Tito–Stalin split, economic and personal freedoms were broader than in the Eastern Bloc. In 1947, Italy ceded most of the Julian March to Yugoslavia, and Slovenia thus regained the Slovenian Littoral. The towns of Koper, Izola, and Piran, Italian-populated urban enclaves saw mass ethnic Italian and anti-Communist emigration (part of the Istrian Exodus) due to the ongoing Foibe massacres and other revenge against them for Italian war crimes and due to their fear of Communism, which by 1947 had nationalised all private property. The dispute over the port of Trieste however remained opened until 1954, until the short-lived Free Territory of Trieste was divided among Italy and Yugoslavia, thus giving Slovenia access to the sea. This division was ratified only in 1975 with the Treaty of Osimo, which gave a final legal sanction to Slovenia's long disputed western border. From the 1950s, the Socialist Republic of Slovenia enjoyed a relatively wide autonomy. Stalinist period Between 1945 and 1948, a wave of political repressions took place in Slovenia and in Yugoslavia. Thousands of people were imprisoned for their political beliefs. Several tens of thousands of Slovenes left Slovenia immediately after the war in fear of Communist persecution. Many of them settled in Argentina, which became the core of Slovenian anti-Communist emigration. More than 50,000 more followed in the next decade, frequently for economic reasons, as well as political ones. These later waves of Slovene immigrants mostly settled in Canada and in Australia, but also in other western countries. The 1948 Tito–Stalin split and aftermath In 1948, the Tito–Stalin split took place. In the first years following the split, the political repression worsened, as it extended to Communists accused of Stalinism. Hundreds of Slovenes were imprisoned in the concentration camp of Goli Otok, together with thousands of people of other nationalities. Among the show trials that took place in Slovenia between 1945 and 1950, the most important were the Nagode Trial against democratic intellectuals and left liberal activists (1946) and the Dachau trials (1947–1949), where former inmates of Nazi concentration camps were accused of collaboration with the Nazis. Many members of the Roman Catholic clergy also suffered persecution. The case of bishop of Ljubljana Anton Vovk, who was doused with gasoline and set on fire by Communist activists during a pastoral visit to Novo Mesto in January 1952, echoed in the western press. 1950s: