Monsignor Božo Milanović, a priest, a scholar, a professor, a publicist, a cultural and public worker, a publisher and editor of books and newspapers, a politician and a diplomat, is certainly one of the most important 20th-century Istrians. In the 90 years of his life, he lived to see probably the most significant European and world events, and many of them were inevitably, to a greater or lesser extent, part of his life. Milanović lived in the outbreak of the First World War, in the interwar period when he fought against fascism, during World War II and after it, when the struggle against a new communist regime replaced the struggle against the fascists. Although being a priest, Milanović dealt with secular and diplomatic issues throughout these periods, due to his life attitudes and beliefs. Thus, in the period up to 1946 Milanović devoted a great deal of his life and work to solving the problems of the people, ie, he helped in the struggle of the Croatian Istrian people for Croatian national integration. Only after the Paris Peace Conference and the departure of the Croatian clergy from further interference in politics, Milanović began building his Church road and turned his efforts to the resolution of Church issues. He lived this kind of ideology, without interfering in secular power, until the end of his life.