History 23 Emigration and immigration 18 Description and travel 12 Immigrants 8 British 7 Foreign relations 6 Politics and government 6 Social conditions 6 Colonies 5 Travel 5 Civilization 4 Economic aspects 4 Social aspects 4 Social life and customs 4 Architecture 3 Economic conditions 3 Government policy 3 Mass media 3 Public welfare 3 Race relations 3 Scots 3 Sports 3 Addresses, essays, lectures 2 African Americans 2 American influences 2 Blacks 2 Cities and towns 2 Civil defense 2 Criminal justice, Administration of 2 Curricula 2