Commerce History 89 International relations 18 Economic conditions 16 Foreign relations 15 Social life and customs 12 Civilization 11 more ... Social conditions 9 Colonies 8 Politics and government 8 Antiquities 7 Relations 6 Trade routes 6 History, Naval 5 Imperialism 5 Merchants 5 Social aspects 5 Colonization 4 Economic aspects 4 Manners and customs 4 Description and travel 3 Ethnic relations 3 Ethnicity 3 History, Modern 3 Industries 3 Jewish merchants 3 Jews 3 Naval history 3 Political aspects 3 Portuguese 3 less ...