History 104 Japan 100 Education 74 Nuclear weapons 69 United States 63 English literature 50 History and criticism 47 Philosophy 44 Social Sciences 39 Teaching 38 Foreign relations 35 Psychology 35 Novel 33 India 32 Literature 32 Religion 25 Canon (Literature) 24 China 24 Mathematics 23 Economics 22 Arts 21 Criticism 19 Biochemistry 18 Management 18 Research 18 Soviet Union 18 Special education 18 Study 18 Criticism and interpretation 17 English language 17