Economic conditions History -- Social conditions 4 Politics and government 3 Politics and government -- 2 Chinese -- 1 Civilization -- 1 more ... Civilization, Oriental 1 Civilization, Western 1 Colonies -- 1 Colonies- -- 1 Commerce -- 1 Communism -- 1 Economic aspects -- 1 Economic conditions -- 1 Economic policy 1 Gas industry -- 1 Globalization -- 1 Historical geography 1 Industrialization -- 1 Islam -- 1 Middle class -- 1 Petroleum industry and trade -- 1 Regionalism -- 1 Renaissance -- 1 Revolution -- 1 Social change -- 1 Social conditions -- 1 Societies, etc -- 1 Technological innovations -- 1 less ...