Title: Zad kulisite na Berlinskii͡a kongres i rodilnite mŭki na Tretata Bŭlgarska dŭzhava
Subjects: Russo-Turkish War, 1877-1878, Territorial questions, Eastern question (Balkan), Foreign relations, Treaty of San Stefano, Treaty of Berlin
Places: Bulgaria
Time periods: 1878-1944