1. Making treaties
2. Commanding the military
3. appointing ambassadors and judges
All this is saying is that when the Europeans colonized Africa they did great damages to the social and political institutions of the natives on a local level, as opposed to necessarily a national level, due to the fact that power in Africa was relatively localized.
Well the "roaring twentys" allowed women to work and that caused for them to meet new men and deciding they filed for devorces and teen pregnancy went up but the deppresion everyone was broke so no one could afford nicer things and there was no work