Title: Velikai︠a︡ Okti︠a︡brʹskai︠a︡ sot︠s︡ialisticheskai︠a︡ revoli︠u︡t︠s︡ii︠a︡ i uchitelʹskoe dvizhenie v Bolgarii, 1917-1923
Subjects: Teachers, History, Influence
Places: Bulgaria, Soviet Union
Time periods: Ferdinand I, 1887-1918, Revolution, 1917-1921