Popular music 7 History 6 Politics and government 6 Archaeology 4 Methodology 3 Choruses, Secular (Mixed voices, 4 parts) with piano 2 Latitude 2 more ... Quadrants (Astronomical instruments) 2 Surveying 2 Traverse tables 2 Antiquities 1 Archaeology and history 1 Biography 1 Choruses, Sacred (Mixed voices, 4 parts) with piano 1 Choruses, Secular (Men's voices, 4 parts) with piano 1 Choruses, Secular (Mixed voices, 4 parts), Unaccompanied 1 Choruses, Secular (Women's voices) with instrumental ensemble 1 Choruses, Secular (Women's voices) with piano 1 Choruses, Secular (Women's voices, 3 parts) with piano 1 Death and burial 1 Educators 1 Folk songs, Russian 1 Foreign relations 1 German language 1 Inscriptions 1 Intellectual life 1 Intellectuals 1 Jews 1 Lutheran Church 1 Network analysis 1 less ...