Economic conditions 8 History -- Social conditions History 3 Politics and government 2 Politics and government -- 2 Autonomy and independence movements 1 more ... Chinese -- 1 Cities and towns -- 1 Colonies -- 1 Colonies- -- 1 Communism -- 1 Economic conditions -- 1 Foreign relations -- 1 Middle class -- 1 Political science -- 1 Race relations -- 1 Revolutions -- 1 Social conditions -- 1 Societies, etc -- 1 Triads (Gangs) -- 1 Villages -- 1 less ...