Africans began calling for independence during which time frame

The people who came to the american colonies in the 17th century had already been exposed to the idea of limited government mainly to the phrase in the declaration of independence stating "that governments are instituted among men, deriving their just powers from the consent of the governed" illustrates the principle of

How did the growth of the middle class affect social reform during the industrial revolution?

Following world war 2, how did the world's leaders promote peace and reduce poverty?