Man-woman relationships 946 History 891 Families 338 Social conditions 327 Social life and customs 275 Women 254 World War, 1939-1945 222 more ... Murder 195 Politics and government 163 Friendship 118 Social aspects 118 Adultery 101 Investigation 96 Revenge 96 African Americans 90 Conduct of life 84 Motion picture producers and directors 81 Fathers and daughters 80 Fathers and sons 79 Love 78 Motion pictures 78 Sexual behavior 75 Triangles (Interpersonal relations) 74 Jews 73 Police 70 Economic conditions 67 Gangsters 65 Criminals 64 Criminal investigation 63 Death 63 less ...