History 298 Politics and government 53 Social conditions 53 Social aspects 45 Women 36 History and criticism 32 African Americans 30 Law and legislation 28 Civilization 27 Political aspects 25 Social life and customs 25 Indians of North America 23 Indigenous peoples 22 Religion 22 Ethnic relations 21 Foreign relations 20 Prevention 20 Popular culture 19 Psychological aspects 19 Government policy 18 History, Military 18 Race relations 18 World War, 1939-1945 17 Diplomatic relations 16 Terrorism 16 Civil rights 15 Presidents 13 Information literacy 12 Libraries 12 Treatment 12