History 57 Social conditions 13 World War, 1939-1945 13 Social aspects 12 Family members 10 Authors, American 9 Diplomatic relations 8 Foreign relations 8 Politics and government 8 American poetry 7 African Americans 6 Families 6 Picture books for children 6 Campaigns 5 History and criticism 5 Influence 5 Influence (Literary, artistic, etc.) 5 Military campaigns 5 Presidents 5 Race relations 5 Women 5 Animals 4 Civilization 4 Comic books, strips, etc 4 Death 4 Family 4 Middle Earth (Imaginary place) 4 Physics 4 Political and social views 4 Psychological aspects 4