Man-woman relationships 397 History 364 Families 116 Social life and customs 111 Murder 103 Social conditions 94 World War, 1939-1945 86 more ... Politics and government 83 Women 76 Friendship 53 African Americans 51 Conduct of life 46 Mothers and daughters 46 Social aspects 46 Race relations 45 Adultery 44 Investigation 44 Teenagers 44 Triangles (Interpersonal relations) 43 Fathers and daughters 42 Revenge 42 Fathers and sons 40 Vietnam War, 1961-1975 40 Love 38 Criminal behavior 37 Gay men 37 Sexual behavior 35 Death 33 Motion picture producers and directors 32 Young women 32 less ...