History Social sciences Documentary films 645 History, Modern 456 Foreign study 289 Sociology 254 Television series 189 mer ... Current affairs 180 Americans 170 Ethnicity 161 Enthnology 156 Science 155 Political science 132 Arts 105 Philosophy 103 Artists 92 Criminal law 86 Human rights 81 History, Military 80 Mass media and culture 77 Women's studies 67 Balts (Indo-European people) 64 Health 60 Gender identity 59 Digital communications 57 Biography 54 Business 53 Economic development 50 Motion pictures 49 Mass media 46 mindre ...