History 196 Law and legislation 139 Economic conditions 121 Education 114 Foreign relations 110 Politics and government 110 Relations 65 Máis ... Study and teaching 65 Industries 61 Emigration and immigration 59 Economic forecasting 58 Taxation 57 Statistics 56 Finance 53 Social conditions 51 History and criticism 46 Commerce 41 Historia 41 Droit 38 Economic history 38 Zeitschrift 38 Education, Higher 37 Research 37 Universities and colleges 36 Administration 35 Law 35 Social aspects 34 Economic aspects 32 Mexicans 31 Women 30 menos ...