Commerce Merchants History 100 Economic conditions 22 Social conditions 17 Social life and customs 10 Politics and government 9 more ... Economic history 8 Economic aspects 7 International trade 6 Ethnic relations 5 Foreign economic relations 5 Manners and customs 5 Social aspects 5 British 4 Mercantile system 4 Stores, Retail 4 Chinese 3 Citizenship 3 Eskimos 3 Fur trade 3 Hunting 3 International economic relations 3 Naval operations, British 3 Pirates 3 Plague 3 Regionalism 3 Russians 3 Trials (Treason) 3 Wholesale trade 3 less ...