20th century Estonia 21 Estland 19 History 17 Biography 15 Authors, Estonian 10 Estonian poetry 10 History and criticism 8 Estonian literature 7 Intellectual life 7 19th century 4 Homes and haunts 4 Art, Modern 3 Authors, Finnish 3 Civilization 3 Diaries 3 Estnisch 3 Estonians 3 Foreign countries 3 Geschichte 3 Politics and government 3 1940-1991 2 Armed Forces 2 Art, Estonian 2 Correspondence 2 Exiles' writings, Estonian 2 Finland 2 Foreign relations 2 Geschichte 1920-1940 2 Kunst 2