History 211 Social conditions 140 Economic conditions 52 Agricultural laborers 44 Social aspects 40 Gangs 38 Murder 38 more ... Labor unions 37 Histoire 34 High technology industries 28 Politics and government 28 Rehabilitation 27 City planning 25 Industrie 24 Economic aspects 23 Case studies 22 Computer industry 22 Police 22 Prisoners 22 Crime 21 Older people 21 Criminals 20 Employment 20 Government policy 20 Women 20 Conditions sociales 19 Race relations 19 Social life and customs 19 Family relationships 18 Migrant agricultural laborers 18 less ...