History 4,618 Politics and government 1,488 Social conditions 1,045 Social life and customs 802 Description and travel 636 Race relations 630 African Americans 532 more ... Foreign relations 400 Economic conditions 388 Civilization 383 Ethnic relations 374 Antiquities 321 Frontier and pioneer life 299 Social aspects 259 Relations 205 Immigrants 193 Emigration and immigration 179 Intellectual life 177 Civil rights 175 Ethnic identity 171 Indigenous peoples 147 Travel 147 Mayas 145 Jews 139 Mexican Americans 138 Indians of South America 132 Slavery 132 Indians of North America 131 Political aspects 131 Women 128 less ...