History Politics and government 205 Social conditions 144 Race relations 128 African Americans 123 Social life and customs 87 Civilization 61 more ... Indigenous peoples 60 Description and travel 58 Frontier and pioneer life 53 Economic conditions 50 Foreign relations 47 Ethnic relations 40 Slavery 39 Civil rights 34 Relations 34 Women 34 Colonies 32 Puritans 30 Social aspects 29 Intellectual life 28 Gender identity 27 Historiography 25 Nationalism 24 Political activity 24 Influence 23 Civil rights movements 22 Riots 22 Jews 21 Discovery and exploration 20 less ...