Economic conditions Politics and government Social conditions 13 History 8 Political aspects 7 Social change 7 Cities and towns 6 more ... City and town life 6 City planning 6 Growth 6 Democratization 4 Economic development 4 Globalization 4 Social aspects 4 Computer networks 3 Cybernetics 3 Economic policy 3 Ethnic conflict 3 Government business enterprises 3 Government ownership 3 Post-communism 3 Yugoslav War, 1991-1995 3 Debts, External 2 Decentralization in government 2 Economic aspects 2 Foreign relations 2 Nation-building 2 Reconstruction (U.S. history, 1865-1877) 2 Revolutions 2 African Americans 1 less ...