Étude et enseignement Study and teaching 30 General 13 Histoire 12 History 12 Conditions sociales 7 Social conditions 7 Education 6 Instruction and study 5 Langage et langues 5 Language and languages 5 Music 5 Musique 5 SOCIAL SCIENCE 5 Allemand (Langue) 4 Art 4 German language 4 MUSIC 4 Aspect politique 3 BUSINESS & ECONOMICS 3 English language 3 Éducation 3 FOREIGN LANGUAGE STUDY 3 History and criticism 3 Jeunesse 3 LANGUAGE ARTS & DISCIPLINES 3 LITERARY CRITICISM 3 Political aspects 3 Rhetoric 3 Youth 3