Title: Kŭm vŭprosa za revoli︠u︡tsionnoto dvizhenie v Bŭlgarii︠a︡ prez 1867-1871
People: Georgi Stoĭkov Rakovski (1821-1867), Vasil Levski (1837-1873), Li︠u︡ben Karavelov (1834-1879)