In order for a social change to occur, the majority must first of all be made aware of the need for the change.E.g: civil rights drew attention by providing social proof of situation- whole south being for whites mainly.
Idea that people should assign greater weight to a particular cause because of showed commitment E.g: Number of people risking their lives like 'freedom riders' on buses
When minority becomes majority.E.g:civil rights activists continued to press for charges that eventually got attention of US government who then passed civil rights act, prohibiting discrimination