Economic conditions History 68 Taxation 37 Social conditions 24 Finance, Public 18 Militia 16 Sources 15 more ... Revolution 11 African Americans 10 Appropriations and expenditures 10 Industries 7 Politics and government 7 Commerce 6 Economic aspects 6 Banks and banking 5 Economic history 5 Race relations 5 City planning 4 Depressions 4 Description and travel 4 Registers, lists, etc 4 Tax collection 4 Transportation 4 Agriculture 3 Anthracite coal industry 3 Community development 3 Community development, Urban 3 Education 3 Emigration and immigration 3 Finance 3 Labor supply 3 Anthracite coal 2 Anthracite coal mines and mining 2 Business enterprises 2 Coal miners 2 Frontier and pioneer life 2 Land use 2 Lists 2 Merchants 2 Neighborhoods 2 less ...