Politics and government 13 History 8 Communism 5 Irish authors 3 Civilization 2 Communism and religion 2 Conservatism 2 Crime 2 Education 2 English poetry 2 Socialism 2 African Americans 1 American bison 1 Boundaries 1 Cattle trade 1 Charitable uses, trusts, and foundations 1 Christian sociology 1 Cities and towns 1 Clock and watch makers 1 Clocks and watches 1 Description and travel 1 Diplomatic relations 1 Economic assistance, American 1 Economics 1 Endowments 1 English fiction 1 Epic literature, Irish 1 Existentialism 1 Foreign relations 1 Frontier and pioneer life 1